update

practical_exercises/10_day_practice/day1/打印练习.cpp

@@ -0,0 +1,24 @@
+#include<iostream>
+using namespace std;
+int main(int argc, char const *argv[])
+{
+    int i,j,k,f;
+    for (i=1;i<=4;i++){
+        for (j=1;j<=30;j++)
+            cout<<" ";
+        for (k=1;k<=8-2*i;k++)
+            cout<<" ";
+        for (f=1;f<=2*i;f++)
+            cout<<'*';
+        cout<<endl;
+    }
+    for(i=1;i<=3;i++){
+        for (j=1;j<=30;j++)
+            cout<<" ";
+        for (f=1;f<=7-2*i;f++)
+            cout<<'*';
+        cout<<endl;
+    }
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day1/是否闰年‘.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+int main(int argc, char const *argv[])
+{
+    int year;
+    bool isLeapYear;
+    cout<<"Enter the year: ";
+    cin>>year;
+    isLeapYear = (((year%4==0)&&(year%100!=0))||(year%400==0));
+    if(isLeapYear)
+    {
+        cout<<year<<" is a leap year"<<endl;
+    }
+    else
+    {
+        cout<<year<<" is not a leap year"<<endl;
+    }
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day1/注释.cpp

@@ -0,0 +1,16 @@
+#include<iostream>
+
+
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD>
+
+
+//<2F><>һ<EFBFBD><D2BB>ע<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD>
+#if 0
+asd
+#endif
+
+//<2F><><EFBFBD><EFBFBD>ע<EFBFBD><D7A2>
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
+#if 1
+asData
+#endif

practical_exercises/10_day_practice/day1/联合体学习.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+//<2F><>ͬ<EFBFBD><CDAC><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ַ
+union myun 
+{
+    struct { int x; int y; int z; }u; 
+    int k; 
+}a; 
+int main() 
+{ 
+    a.u.x =4;
+    a.u.y =5; 
+    a.u.z =6; 
+    a.k = 0; //<2F><><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD>һ<EFBFBD><D2BB>int<6E>ռ<EFBFBD>ֵ
+    printf("%d %d %d %d\n",a.u.x,a.u.y,a.u.z,a.k);
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day10/readme.md

@@ -0,0 +1 @@
+# <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>

practical_exercises/10_day_practice/day10/文件例题/12-1.cpp

@@ -0,0 +1,18 @@
+//<2F><>cin<69><6E><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>к<EFBFBD><D0BA>пհ׾Ͳ<D7BE><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣<EFBFBD><EBA1A3>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>հ<EFBFBD><D5B0>ַ<EFBFBD>ʱ<EFBFBD><CAB1>cin<69><6E><EFBFBD><EFBFBD>Ϊ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD>
+#include<iostream>
+using namespace std;
+int main(int argc, char const *argv[])
+{
+    char a[50];
+    cout<<"please input a string:";
+    cin>>a;
+    cout<<a<<endl;
+    system("pause");
+    return 0;
+}
+/*
+<EFBFBD><EFBFBD>a<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>
+this is a string! 
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/

practical_exercises/10_day_practice/day10/文件例题/12-2应用.cpp

@@ -0,0 +1,13 @@
+#include<iostream>
+using namespace std;
+int main(int argc, char const *argv[])
+{
+    char stu[5][10];
+    int i;
+    for(i=0;i<5;i++)
+        cin.getline(stu[i],10,',');
+    for(i=0;i<5;i++)
+        cout<<stu[i]<<endl;
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day10/文件例题/12-3.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+//<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
+//put(char c)
+//write(const char*c, int n)
+int main(){
+    char c;
+    char a[50]="this is a string...";
+    cout<<"use get() input char:";
+    while((c=cin.get())!='\n'){
+        cout.put(c);
+        cout.put('\n');
+        cout.put('t').put('h').put('i').put('s').put('\n');
+        cout.write(a,12).put('\n');
+        cout<<"look"<<"\t here!"<<endl;
+    }
+    system("pause");
+}

practical_exercises/10_day_practice/day10/文件例题/12-5.cpp

@@ -0,0 +1,17 @@
+//Eg12-5.cpp
+#include<iostream>
+#include<iomanip>
+using namespace std;
+int main(){
+    char c[30]="this is string";
+    double d=-1234.8976;
+    cout<<setw(30)<<left<<setfill('*')<<c<<"----L1"<<endl;
+    cout<<setw(30)<<right<<setfill('*')<<c<<"----L2"<<endl;
+    //showbase<73><65>ʾ<EFBFBD><CABE>ֵ<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>ǰ׺
+    cout<<dec<<showbase<<showpoint<<setw(30)<<d<<"----L3"<<"\n";
+    //showpoint<6E><74>ʾС<CABE><D0A1><EFBFBD><EFBFBD>
+    cout<<setw(30)<<showpoint<<setprecision(10)<<d<<"----L4"<<"\n";
+    //setbase(8)<29><><EFBFBD>ð˽<C3B0><CBBD><EFBFBD>
+    cout<<setw(30)<<setbase(16)<<100<<"----L5"<<"\n";
+    system("pause");
+}

practical_exercises/10_day_practice/day10/文件例题/12-6.cpp

@@ -0,0 +1,28 @@
+//12-6.cpp
+#include<iostream>
+#include<fstream>
+using namespace std;
+int main(int argc, char const *argv[])
+{
+    fstream ioFile;
+    ioFile.open("./a.dat",ios::out);
+    ioFile<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<"  "<<76<<" "<<98<<" "<<67<<endl;	//L3
+    ioFile<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<"  "<<89<<" "<<70<<" "<<60<<endl;
+    ioFile<<"<EFBFBD><EFBFBD>ʮ"<<"  "<<91<<" "<<88<<" "<<77<<endl;
+    ioFile<<"<EFBFBD>ƶ<EFBFBD>"<<"  "<<62<<" "<<81<<" "<<75<<endl;
+    ioFile<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<"  "<<90<<" "<<78<<" "<<67<<endl;
+    ioFile.close();
+    ioFile.open("./a.dat",ios::in|ios::binary);
+    char name[10];
+    int chinese,math,computer;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\t"<<"Ӣ<EFBFBD><EFBFBD>\t"<<"<EFBFBD><EFBFBD>ѧ\t"<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\t"<<"<EFBFBD>ܷ<EFBFBD>"<<endl; 
+    ioFile>>name;										
+    while(!ioFile.eof())	{								
+        ioFile>>chinese>>math>>computer;					
+        cout<<name<<"\t"<<chinese<<"\t"<<math<<"\t"<<computer<<"\t"<<chinese+math+computer<<endl;		
+        ioFile>>name;
+    }
+    ioFile.close();										
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day10/文件例题/12-7.cpp

@@ -0,0 +1,21 @@
+//Eg12-7.cpp
+#include <iostream>
+#include <fstream>
+using namespace std;
+int main(){
+    char ch;
+    ofstream out("/test.dat",ios::out|ios::binary);		//L1
+    for(int i=0;i<90;i++){
+        if(i>0 && (i % 30)==0)
+		    out.put('\n');						
+        out.put(i);							
+        out.put(' ');	
+        						
+	}
+    out.close();							    
+    ifstream in("/test.dat",ios::in|ios::binary);
+    while(in.get(ch))
+		cout<<ch;				
+	in.close();		
+    system("pause");					
+}

practical_exercises/10_day_practice/day10/文件例题/12-9.cpp

@@ -0,0 +1,41 @@
+//Eg12-12.cpp
+#include <iostream>
+#include <cstring>
+#include <fstream>
+using namespace std;
+class Employee{
+private:
+    int number ,age;
+    char name[20];
+    double sal;
+public:
+    Employee(){}
+    Employee(int num,char* Name,int Age, double Salary){
+        number=num;
+        strcpy(name,Name);
+        age=Age;
+        sal=Salary;
+    }
+    void display(){
+        cout<<number<<"\t"<<name<<"\t"<<age<<"\t"<<sal<<endl;
+    }
+};
+
+int main(){
+    ofstream out("D:/Employee.dat",ios::out);	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
+    Employee e1(1,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>",23,2320);
+    Employee e2(2,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>",32,3210);
+    Employee e3(3,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>",34,2220);
+    Employee e4(4,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>",27,1220);
+    out.write((char*)&e1,sizeof(e1));		//<2F><>e1,e2,e3,e4˳<34><CBB3>д<EFBFBD><D0B4><EFBFBD>ļ<EFBFBD>
+    out.write((char*)&e2,sizeof(e2));
+    out.write((char*)&e3,sizeof(e3));
+    out.write((char*)&e4,sizeof(e4));
+
+     //<2F><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>뽫e3<65><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壩<EFBFBD><E5A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ40<34><30>   
+    Employee e5(3,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>",40,2220);
+    out.seekp(3*sizeof(e1));		//ָ<>붨λ<EBB6A8><CEBB><EFBFBD><EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD>ʼΪ0<CEAA><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD>
+    out.write((char*)&e5,sizeof(e5));	//<2F><>e5д<35><D0B4><EFBFBD><EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD>λ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD>e3
+    out.close();			//<2F>ر<EFBFBD><D8B1>ļ<EFBFBD>
+    system("pause");
+}

practical_exercises/10_day_practice/day10/文件例题/三种输入格式/get()12-2.cpp

@@ -0,0 +1,21 @@
+//<2F><><EFBFBD><EFBFBD>12-2<><32>  <20>ú<EFBFBD><C3BA><EFBFBD>get<65><74>getline<6E><65>ȡ<EFBFBD><C8A1><EFBFBD>ݡ<EFBFBD>
+#include <iostream>
+using namespace std;
+int main()
+{
+	char a,b,c,d;
+	cin.get(a);
+	cin.get(b);
+	c = cin.get();
+	d = cin.get();
+	cout<<int(a)<<','<<int(b)<<','<<int(c)<<','<<int(d)<<endl;
+    system("pause");
+    return 0;
+}
+
+/*
+<EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD>a = cin.get() ?<3F><><EFBFBD><EFBFBD> ?cin.get(a)
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>㹻<EFBFBD><EFBFBD><EFBFBD>س<EFBFBD>
+˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD>;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ASCALL<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽a<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>cin<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>cin.get()<29>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[enter]<5D><>[space]<5D><>[tab]<5D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽ<EFBFBD><C7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/

practical_exercises/10_day_practice/day10/文件例题/三种输入格式/get(a,size)12-2-1.cpp

@@ -0,0 +1,44 @@
+
+//<2F><><EFBFBD><EFBFBD>12-2<><32>  <20>ú<EFBFBD><C3BA><EFBFBD>get<65><74>getline<6E><65>ȡ<EFBFBD><C8A1><EFBFBD>ݡ<EFBFBD>
+#include <iostream>
+using namespace std;
+//cin.get(arrayname,size)  <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>뵽arrayname<6D>У<EFBFBD><D0A3><EFBFBD><EFBFBD>Ȳ<EFBFBD><C8B2><EFBFBD><EFBFBD><EFBFBD>size
+int main()
+{
+    //get()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    //1.<2E><><EFBFBD>봮<EFBFBD><EBB4AE><size<7A><65><EFBFBD><EFBFBD><EFBFBD>봮<EFBFBD><EBB4AE>>arraylength<74><68><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>arrayname<6D><65>С<EFBFBD><D0A1>ʹ<EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	// char a[10];
+	// cin.get(a,20);
+	// cout<<a<<endl;
+    // cout<<sizeof(a)<<endl;
+    //2.<2E><><EFBFBD>봮<EFBFBD><EBB4AE><size<7A><65><EFBFBD><EFBFBD><EFBFBD>봮<EFBFBD><EBB4AE><arraylength<74><68><EFBFBD>Ѵ<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD>油<EFBFBD><E6B2B9>\0<><30>
+    // char b[10];
+	// cin.get(b,20);
+	// cout<<b<<endl;//12345<34><35><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>12345'\0<><30>
+    // cout<<sizeof(b)<<endl;
+    //3.<2E><><EFBFBD>봮<EFBFBD><EBB4AE>>size<7A><65><EFBFBD>Ƚ<EFBFBD>ȡsize<7A><65><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>arraylength<74><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰarraylength-1<><31><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󲹳䡮\0<><30>
+    // char c[5];
+	// cin.get(c,10);
+	// cout<<c<<endl;
+    // cout<<sizeof(c)<<endl;
+    //4.<2E><><EFBFBD>봮<EFBFBD><EBB4AE>>size<7A><65><EFBFBD>Ƚ<EFBFBD>ȡsize<7A><65><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>arraylength<74><68><EFBFBD><EFBFBD><EFBFBD>ѽ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>󲹳䡮\0<><30>
+    // char d[10];
+	// cin.get(d,5);
+	// cout<<d<<endl;
+    // cout<<sizeof(d)<<endl;
+    
+    //get()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    /*
+        <20>÷<EFBFBD><C3B7><EFBFBD>cin.get(arrayname,size,s) ?<3F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽arrayname<6D>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ﳤ<EFBFBD><EFB3A4>sizeʱ<65><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>sʱ<73><CAB1><EFBFBD><EFBFBD>
+        ע<>ͣ<EFBFBD>a<EFBFBD><61><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>飬<EFBFBD><E9A3AC>char a[]l<><6C><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD>Ϊstring<6E><67><EFBFBD>ͣ<EFBFBD>sizeΪ<65><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>볤<EFBFBD>ȣ<EFBFBD>sΪ<73><CEAA><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>s<EFBFBD><73><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>s<EFBFBD><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    */
+    int i;
+    char e[10];
+    cin.get(e,8,',');
+    cout<<e;
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day10/文件例题/三种输入格式/getline()12-2-2.cpp

@@ -0,0 +1,38 @@
+#include<iostream>
+using namespace std;
+/*
+<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>cin.getline(arrayname,size)<29><>cin.get(arrayname,size)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+cin.get(arrayname,size)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[enter]ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀǰ<C4BF><C7B0><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>[enter]
+cin.getline(arrayname,size)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[enter]ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD>ǻ<EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>[enter]
+*/
+int main()
+{
+    /*
+	char a[10];
+    char b;
+    cin.get(a,10);
+	cin.get(b);
+    cout<<a<<endl<<int(b);//<2F><><EFBFBD>룺12345[enter] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>12345 <20><><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD> 10*/
+    /*char c[10];
+    char d;
+    cin.getline(c,10);
+    cin.get(d);
+	cout<<c<<endl<<int(d);//<2F><><EFBFBD>룺12345[enter]a[enter] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>12345<34><35><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>97*/
+    //cin.getline(arrayname,size,s)<29><>cin.gei(arrayname,size,s)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    /*
+    cin.getline(arrayname,size,s)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sʱ<73><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD>s<EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
+    cin.get<65><74>arrayname,size,s<><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sʱ<73><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>s
+    */
+   /*
+    char e[10];
+    char f;
+    cin.get(e,10,',');
+	cin.get(f);
+	cout<<e<<endl<<f;//<2F><><EFBFBD>룺12345,[enter] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>12345<34><35><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD>cin,get<65><74><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>*/
+    char e1[10];
+    char f1;
+    cin.getline(e1,10,',');
+	cin.get(f1);
+	cout<<e1<<endl<<f1;//<2F><><EFBFBD>룺asd,wqe <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>asd<73><64><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>w
+    system("pause");
+}

practical_exercises/10_day_practice/day10/文件例题/输出格式10-4.cpp

@@ -0,0 +1,28 @@
+#include<iostream>
+using namespace std;
+
+int main(int argc, char const *argv[])
+{
+    char c[30]="this is string";
+    double d = -1231.232;
+    cout.width(30);
+    cout.fill('*');
+    cout.setf(ios::left);
+    cout<<c<<"----L1"<<endl;
+    cout.width(30);
+    cout.fill('-');
+    cout.setf(ios::right);
+    cout<<c<<"----L2"<<endl;
+    cout.setf(ios::dec|ios::showbase|ios::showpoint);
+    cout.width(30);
+    cout<<d<<"----L3"<<"\n";
+    cout.setf(ios::showpoint);
+    cout.precision(10);
+    cout.width(30);
+    cout<<d<<"----L4"<<"\n";
+    cout.width(30);
+    cout.setf(ios::oct,ios::basefield);
+    cout<<100<<"----L5"<<"\n";
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day10/文件例题/重要!!!课堂练习.cpp

@@ -0,0 +1,63 @@
+#include<iostream>
+#include<fstream>
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵Ķ<CDB5>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>
+#include<vector>
+#include<cstring>
+using namespace std;
+class Person{
+    private:
+        char name[20];
+        char id[18];
+        int age;
+        char addr[20];
+    public:
+        Person(){}
+        Person(char *n,char *pid,int Age,char* Addr){
+            strcpy(name,n);
+            strcpy(id,pid);
+            age=Age;
+            strcpy(addr,Addr);
+        }
+        void display(){
+            cout<<name<<"\t"<<id<<"\t"<<age<<"\t"<<addr<<endl;
+        }
+};
+int main(int argc, char const *argv[])
+{
+    vector<Person> v;
+    vector<Person>::iterator pos;//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>vector<6F><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>vector<6F><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA> 
+    char ch;
+    ofstream out("d:/person.dat",ios::out|ios::app|ios::binary);
+    char Name[20],ID[18],Addr[20];
+    int Age;
+    cout<<"------<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD>------"<<endl<<endl;
+    do{
+        cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ";
+        cin>>Name;
+        cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>ţ<EFBFBD> ";
+        cin>>ID;
+        cout<<"<EFBFBD><EFBFBD><EFBFBD>䣺 ";
+        cin>>Age;
+        cout<<"<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD> ";
+        cin>>Addr;
+        Person per(Name,ID,Age,Addr);
+        out.write((char*)&per,sizeof(per));
+        cout<<"Enter another Person(y/n)?";
+        cin>>ch;
+    }while(ch=='y');
+    out.close();
+    ifstream in("d:/person.dat",ios::in|ios::binary);	//L9
+    Person s;
+    in.read((char*)&s,sizeof(s));		
+    while(!in.eof()){							       
+        v.push_back(s);						       
+        in.read((char*)&s,sizeof(s));			
+    }								 
+    cout<<"\n---------<2D><><EFBFBD>ļ<EFBFBD><C4BC>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>--------"<<endl<<endl;//L15
+    pos=v.begin();						
+    for(pos=v.begin();pos!=v.end();pos++)				        
+        (*pos).display();				
+
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day2/x的n次方.cpp

@@ -0,0 +1,32 @@
+#include<iostream>
+using namespace std;
+double power(double x, int n);
+
+int main(int argc, char const *argv[])
+{
+    int x;
+    cin>>x;
+    int wei=0;
+    int sum=0;
+    int each,chu;
+    for(int i=0;i<8;i++)
+    {
+        each=x%10;
+        chu=x/10;
+        sum+=each*power(2,wei);
+        x=chu;
+        wei++;
+    }
+    cout<<sum<<endl;
+    system("pause");
+    return 0;
+}
+double power(double x, int n)
+{
+    double val = 1.0;
+    while(n--)
+    {
+        val*=x;
+    }
+    return val;
+}

practical_exercises/10_day_practice/day2/掷骰子.cpp

@@ -0,0 +1,63 @@
+#include<iostream>
+#include<cstdlib>
+using namespace std;
+int rolldice();
+int main(int argc, char const *argv[])
+{
+    int flag;
+    unsigned seed;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
+    cin>>seed;
+    srand(seed);
+    int sum = rolldice();
+    int selfdim;
+    switch(sum)
+    {
+        case 7:
+        case 11:
+            flag=1;
+            break;
+        case 2:
+        case 3:
+        case 12:
+            flag=2;
+            break;
+        default:
+            flag=0;
+            selfdim=sum;
+            break;
+    }
+    while(flag==0)
+    {
+        sum=rolldice();
+        if(sum==selfdim)
+        {
+            flag=1;
+        }
+        else if(sum==7)
+        {
+            flag=2;
+        }
+    }
+    if(flag==1)
+    {
+        cout<<"player win\n";
+    }
+    else
+    {
+        cout<<"player loses\n";
+    }
+
+    system("pause");
+    return 0;
+}
+
+int rolldice()
+{   
+    int sum=0;
+    int dim1 = rand()%6+1;
+    int dim2 = rand()%6+1;
+    sum = dim1+dim2;
+    cout<<"sum="<<dim1<<"+"<<dim2<<endl;
+    return sum;
+}

practical_exercises/10_day_practice/day2/枚举类型.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+using namespace std;
+
+enum weekday
+{
+ s,m,t,w,thu,f,s1
+};
+
+int main(int argc, char const *argv[])
+{
+    enum weekday wek=s;
+    // weekday wek=s;
+    for(int i=wek;i!=f;i++)
+    {
+        cout<<i<<endl;
+        cout<<wek+s<<endl;
+        cout<<"-------<2D><><EFBFBD><EFBFBD>-------"<<endl;
+    }
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day2/求π.cpp

@@ -0,0 +1,28 @@
+#include<iostream>
+using namespace std;
+double arctan(double x);
+int main(int argc, char const *argv[])
+{
+    double a = 16.0*arctan(1.0/5.0);
+    double b = 4.0*arctan(1.0/239.0);
+    double pi = a-b;
+    cout<<pi<<endl;
+    system("pause");
+    return 0;
+}
+double arctan(double x)
+{
+    double head=x;
+    int tail=1;
+    double art=0;
+    while(double(head/tail)>1e-15)
+    {
+        art=(tail%4==1)? art+head/tail: art-head/tail;
+        head*=x*x;
+        tail+=2;
+        cout<<"---------------"<<endl;
+        cout<<tail<<endl;
+        cout<<"---------------"<<endl;
+    }
+    return art;
+}

practical_exercises/10_day_practice/day2/汉诺塔.cpp

@@ -0,0 +1,33 @@
+#include<iostream>
+using namespace std;
+void move(char A, char B);
+void hanoi(int n,char A, char B, char C);
+int main(int argc, char const *argv[])
+{
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
+    int disks;
+    cin>>disks;
+    hanoi(disks,'A','B','C');
+    system("pause");
+    return 0;
+}
+
+
+void move(char A, char B)
+{
+    cout<<A<<"->"<<B<<endl;
+}
+
+void hanoi(int n, char A, char B, char C)
+{
+    if (n==1)
+    {
+        move(A,C);
+    }
+    else
+    {
+        hanoi(n-1,A,C,B);
+        move(A,C);
+        hanoi(n-1,B,A,C);
+    }
+}

practical_exercises/10_day_practice/day2/结构体.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+using namespace std;
+struct student
+{
+    int num;
+    char name[20];
+    char gender;
+};
+
+int main(int argc, char const *argv[])
+{
+    student s={10,"asd",'M'};
+    cout<<s.num<<endl;
+    cout<<sizeof(s.num)<<endl;
+    cout<<sizeof(s.name)<<endl;
+    cout<<sizeof(s.gender)<<endl;
+    cout<<sizeof(s)<<endl;
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day2/递归1.cpp

@@ -0,0 +1,25 @@
+#include<iostream>
+using namespace std;
+
+int f(int n);
+int main(int argc, char const *argv[])
+{   
+    cout<<"input x:";
+    int x;
+    cin>>x;
+    cout<<f(x)<<endl;
+    system("pause");
+    return 0;
+}
+
+int f(int n)
+{
+    if(n==0)
+    {
+        return 1;
+    }
+    else
+    {
+        return n*f(n-1);
+    }
+}

practical_exercises/10_day_practice/day2/递归2.cpp

@@ -0,0 +1,25 @@
+#include<iostream>
+using namespace std;
+int f(int n, int k);
+int main(int argc, char const *argv[])
+{
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>k"<<endl;
+    int n,k;
+    cin>>n;
+    cin>>k;
+    cout<<f(n,k)<<endl;
+    system("pause");
+    return 0;
+}
+
+int f(int n, int k)
+{
+    if ((n==k)||(k==0))
+    {
+        return 1;
+    }
+    else
+    {
+        return f(n-1,k-1)+f(n-1,k);
+    }
+}

practical_exercises/10_day_practice/day2/静态变量.cpp

@@ -0,0 +1,32 @@
+#include<iostream>
+using namespace std;
+int i=1;  // i Ϊȫ<CEAA>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>о<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD>
+int main(void)   
+{ 
+    static int a;  // <20><>̬<EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2>ɼ<EFBFBD><C9BC><EFBFBD>
+    int b=-10;  // b, cΪ<63>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD>
+    int c=0;
+    void other(void);
+    cout<<"---MAIN---\n";
+    cout<<" i: "<<i<<" a: "<<a<<" b: "<<b<<" c: "<<c<<endl;//1 0 -10 0
+    c=c+8;  other();// 33 4 0 15
+    cout<<"---MAIN---\n";
+    cout<<" i: "<<i<<" a: "<<a<<" b: "<<b<<" c: "<<c<<endl;//33 0 -10 8 
+    i=i+10; other();  //75 6 4 15
+    other(); //107 8 6 15
+    system("pause");
+    return 0;
+}
+void other(void)
+{
+    static int a=2;
+    static int b;
+    // a,bΪ<62><CEAA>̬<EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2>ɼ<EFBFBD><C9BC><EFBFBD>
+    //ֻ<><D6BB>һ<EFBFBD>ν<EFBFBD><CEBD>뺯<EFBFBD><EBBAAF>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
+    int c=10;   // CΪ<43>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    //ÿ<>ν<EFBFBD><CEBD>뺯<EFBFBD><EBBAAF>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
+    a=a+2; i=i+32; c=c+5;
+    cout<<"---OTHER---\n";
+    cout<<" i: "<<i<<" a: "<<a<<" b: "<<b<<" c: "<<c<<endl;
+    b=a;
+}

practical_exercises/10_day_practice/day3/两数交换.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+using namespace std;
+void swap(int & a, int & b);
+int main(int argc, char const *argv[])
+{
+    int x1(5);
+    int x2(7);
+    swap(x1,x2);
+    cout<<x1<<" "<<x2<<endl;
+    system("pause");
+    return 0;
+}
+
+void swap(int & a, int & b)
+{
+    int t;
+    t = a;
+    a = b;
+    b = t;
+
+}

practical_exercises/10_day_practice/day3/内联函数.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+inline double CalArea(double radius);
+int main(int argc, char const *argv[])
+{
+    double r(3.0);
+    double area;
+    area = CalArea(r);
+    cout<<area<<endl;
+    system("pause");
+    return 0;
+}
+//<2F>ӹؼ<D3B9><D8BC><EFBFBD>inline
+inline double CalArea(double radius)
+{
+    return 3.14*radius*radius;
+}

practical_exercises/10_day_practice/day3/函数综合练习题.cpp

@@ -0,0 +1,61 @@
+/*
+һԲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD>һԲ<EFBFBD>͹<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD>դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>դ<EFBFBD><EFBFBD><EFBFBD>۸<EFBFBD>Ϊ35Ԫ/<2F>ף<EFBFBD><D7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ20Ԫ/ƽ<><C6BD><EFBFBD>ס<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ3<EFBFBD>ף<EFBFBD><EFBFBD><EFBFBD>Ӿ<EFBFBD>ذ뾶<EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̼<EFBFBD><EFBFBD>㲢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۡ<EFBFBD>
+
+ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԲǶ<EFBFBD><EFBFBD>СԲ<EFBFBD><EFBFBD>
+СԲ<EFBFBD>ڴ<EFBFBD>Բ<EFBFBD>м䣬СԲΪ<EFBFBD><EFBFBD>Ӿ<EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD>СԲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+#include<iostream>
+using namespace std;
+const float PI=3.14159;
+const float FencePrice=35;
+const float ConcretePrice=20;
+
+class Circle
+{
+    private:
+        float radius;
+    public:
+        Circle(float r);
+        float Circumference() const;
+        float Area() const;
+};
+Circle::Circle(float r)
+{
+    radius=r;
+}
+
+// <20><><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>ܳ<EFBFBD>
+float Circle::Circumference() const
+{
+    return 2 * PI * radius;
+}
+        
+// <20><><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+float Circle::Area() const
+{
+    return PI * radius * radius;
+}
+
+int main(int argc, char const *argv[])
+{
+    float radius;
+    float FenceCost, ConcreteCost; 
+    
+    // <20><>ʾ<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뾶
+    cout<<"Enter the radius of the pool: ";
+    cin>>radius;
+
+    // <20><><EFBFBD><EFBFBD> Circle <20><><EFBFBD><EFBFBD>
+    Circle Pool(radius);
+    Circle PoolRim(radius + 3);       
+    // <20><><EFBFBD><EFBFBD>դ<EFBFBD><D5A4><EFBFBD><EFBFBD><EFBFBD>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD>
+    FenceCost = PoolRim.Circumference() * FencePrice;
+    cout << "Fencing Cost is <20><>" << FenceCost << endl;
+    
+    //  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD>
+    ConcreteCost = (PoolRim.Area() - Pool.Area())*ConcretePrice;
+    cout << "Concrete Cost is <20><>" << ConcreteCost << endl;
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day3/类前向声明.cpp

@@ -0,0 +1,40 @@
+/*
+ʹ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵġ<EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ø<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>
+*/
+
+//<2F><>һ<EFBFBD><D2BB>
+#include<iostream>
+class Fred;	//ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+class Barney {
+   Fred x;	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Fred<65><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD>
+};
+class Fred {
+   Barney y;
+};
+
+
+//<2F>ڶ<EFBFBD><DAB6><EFBFBD>
+class Fred;	//ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+ 
+class Barney {
+ public:
+   void method()
+   {
+     x->yabbaDabbaDo();	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Fred<65><64><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD>֮ǰ<D6AE><C7B0>ʹ<EFBFBD><CAB9>
+   }
+ private:
+   Fred* x;   //<2F><>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Fred<65><64><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ָ<EFBFBD><D6B8>
+ };
+ 
+class Fred {
+ public:
+   void yabbaDabbaDo();
+ private:
+   Barney* y;
+}; 
+
+/*
+<EFBFBD>ܽ᣺<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ʹ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>漰<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>ϸ<EFBFBD>ڡ<EFBFBD>
+*/

practical_exercises/10_day_practice/day3/静态成员函数1.cpp

@@ -0,0 +1,30 @@
+/*
+֪ʶ<EFBFBD>㣺
+<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>þ<EFBFBD>̬<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+#include<iostream>
+using namespace std;
+class Application
+{ 
+public:
+    static void f(); 
+    static void g();
+private:
+    static int global;
+};
+int Application::global=0;
+void Application::f()
+{  global=5;}
+void Application::g()
+{  cout<<global<<endl;}
+
+int main()
+{
+    Application::f();
+    Application::g();
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day3/静态成员函数2.cpp

@@ -0,0 +1,24 @@
+#include<iostream>
+using namespace std;
+class A
+{
+    public:
+        static void f(A a);
+    private:
+        int x;
+};
+void A::f(A a)
+{
+   
+    //<2F><>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD>ݳ<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    // cout<<x; //<2F><>x<EFBFBD><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD><EFBFBD><EFBFBD>
+    cout<<a.x;  //<2F><>ȷ
+}
+
+int main(int argc, char const *argv[])
+{
+    A a;
+    a.f(A());
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day3/静态数据成员.cpp

@@ -0,0 +1,39 @@
+/*
+ѧϰ֪ʶ<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>Ա
+<EFBFBD>ùؼ<EFBFBD><EFBFBD><EFBFBD>static<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD>Ա<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⶨ<EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(::)<29><>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ
+*/
+#include <iostream>
+using namespace std;
+class Point	
+{
+public:	
+	Point(int xx=0, int yy=0) {X=xx; Y=yy; countP++; } 
+    Point(Point &p);	
+	int GetX() {return X;}
+	int GetY() {return Y;}
+	void GetC() {cout<<" Object id="<<countP<<endl;}
+private:	
+	int X,Y;
+    //<2F><>̬<EFBFBD><CCAC><EFBFBD>ݳ<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
+	static int countP;
+};
+Point::Point(Point &p)
+{	X=p.X;
+	Y=p.Y;
+	countP++;
+}
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⶨ<EFBFBD><E2B6A8><EFBFBD>ͳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(::)<29><>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ
+int Point::countP=0; 
+int main()	
+{	Point A(4,5);	
+	cout<<"Point A,"<<A.GetX()<<","<<A.GetY();
+	A.GetC();	
+	Point B(A);	
+	cout<<"Point B,"<<B.GetX()<<","<<B.GetY();
+	B.GetC();	
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day4/const用法/readme.md

@@ -0,0 +1,8 @@
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
+const  <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD>  &<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣺱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD>,<2C><><EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD>¡<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>  const  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ز<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¡<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>  const  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[<5B><>С]...
+<EFBFBD><EFBFBD>ָ<EFBFBD>룺ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>롣

practical_exercises/10_day_practice/day4/const用法/常对象与常引用.cpp

@@ -0,0 +1,24 @@
+
+#include<iostream>
+using namespace std;
+void display(const double& r);
+
+class A
+{
+     public:
+         A(int i,int j) {x=i; y=j;}
+     private:
+         int x,y;
+};
+int main()
+{   double d(9.5);
+     display(d);
+     A const a(3,4); //a<>dz<EFBFBD><C7B3><EFBFBD><EFBFBD>󣬲<EFBFBD><F3A3ACB2>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>
+     system("pause");
+     return 0;
+}
+void display(const double& r)
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>βΣ<CEB2><CEA3>ں<EFBFBD><DABA><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ܸ<EFBFBD><DCB8><EFBFBD> r<><72><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD><EFBFBD><EFBFBD>
+{   cout<<r<<endl;   }
+
+

practical_exercises/10_day_practice/day4/const用法/常对象与普通函数.cpp

@@ -0,0 +1,41 @@
+#include<iostream>
+using namespace std;
+class R
+{    public:
+         R(int r1, int r2){R1=r1;R2=r2;}
+         //const<73><74><EFBFBD>ֳ<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>غ<EFBFBD><D8BA><EFBFBD>
+         void print();
+         void print() const;
+      private:
+         int R1,R2;
+};
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>const;
+<EFBFBD><EFBFBD><EFBFBD>const<EFBFBD>Ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD>֣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>ҲҪ<EFBFBD><EFBFBD>const<EFBFBD>ؼ<EFBFBD><EFBFBD>֡<EFBFBD>
+const<EFBFBD>ؼ<EFBFBD><EFBFBD>ֿ<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+
+void R::print()
+{     
+    cout<<"<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
+    cout<<R1<<":"<<R2<<endl;
+}
+//ʵ<><CAB5><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>
+void R::print() const
+{     
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
+    cout<<R1<<";"<<R2<<endl;
+}
+int main()
+{   
+    R a(5,4);
+    a.print();  //<2F><><EFBFBD><EFBFBD>void print()
+    //ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>
+    const R b(20,52);  
+    b.print();  //<2F><><EFBFBD><EFBFBD>void print() const
+    system("pause");
+    return 0;
+}
+
+

practical_exercises/10_day_practice/day4/友元函数/readme.md

@@ -0,0 +1,9 @@
+# <20><>Ԫ<EFBFBD><D4AA><EFBFBD>
+<EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>C++<2B>ṩ<EFBFBD><E1B9A9>һ<EFBFBD><D2BB><EFBFBD>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD>ݷ<EFBFBD>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĻ<D8B5><C4BB>ơ<EFBFBD>
+ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>DZ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ࡣ
+Ϊ<EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷ<EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ԭ<EFBFBD>򣬽<EFBFBD><EFBFBD>龡<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>
+# <20><><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD>
+<EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹؼ<EFBFBD><EFBFBD><EFBFBD>friend<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>ķdz<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> private <20><> protected<65><64>Ա
+<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD>װ<EFBFBD>Ϳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD>ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

practical_exercises/10_day_practice/day4/友元函数/友元模块.cpp

@@ -0,0 +1,31 @@
+//ʹ<><CAB9><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+#include <iostream>
+#include <cmath>
+using namespace std;
+class Point{
+  public:
+    Point(int x=0,int y=0):X(x),Y(y){}
+    int GetX(){
+      return X;
+    }
+    int GetY(){
+      return Y;
+    }
+    friend float Distance(Point &a,Point &b);
+  private:
+    int X,Y;//˽<><CBBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>Ա
+};
+//ͨ<><CDA8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>һ<EFBFBD><D2BB>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA>һ<EFBFBD><D2BB>ģ<EFBFBD><C4A3><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD>һ<EFBFBD><D2BB>ģ<EFBFBD><C4A3><EFBFBD>б<EFBFBD><D0B1>DZ<EFBFBD><C7B1><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>Ϣ<EFBFBD><CFA2>
+float Distance(Point &a, Point &b){
+  double dx = a.X-b.X;
+  double dy = a.Y-b.Y;
+  return sqrt(dx*dx+dy*dy);
+}
+
+int main()
+{  
+    Point p1(3.0,5.0),p2(4.0,6.0);
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>"<<Distance(p1,p2)<<endl;
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day4/友元函数/友元类.cpp

@@ -0,0 +1,49 @@
+#include<iostream>
+using namespace std;
+/*
+<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD>ʶԷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>г<EFBFBD>Ա<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>﷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>friend<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>кͱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
+<EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
+*/
+class A{
+  friend class B;
+  public:
+    void Display(){
+      cout<<x<<endl;
+    }
+    private:
+      int x;
+};
+class B
+{   public:
+      void Set(int i);
+      void Display();
+    private:
+      A a;
+};
+void B::Set(int i)
+{
+   a.x=i;
+}
+void B::Display()
+{
+   a.Display();
+}
+
+int main(int argc, char const *argv[])
+{
+    B b;
+    b.Set(10);
+    b.Display();
+
+    system("pause");
+    return 0;
+}
+
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>кͱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/

practical_exercises/10_day_practice/day4/拷贝构造函数/clock.cpp

@@ -0,0 +1,47 @@
+#include<iostream>
+#include"clock.h"
+using namespace std;
+Clock::Clock(int NewH,int NewM,int NewS)
+{
+    this->Hour=NewH;
+    this->Minute=NewM;
+    this->Second=NewS;
+}
+Clock::Clock(Clock &c)
+{
+    this->Hour=c.Hour;
+    this->Minute=c.Minute;
+    this->Second=c.Second;
+}
+void Clock::SetTime(int NewH,int NewM,int NewS)
+{
+    //<2F>Ӳ<EFBFBD><D3B2><EFBFBD>thisָ<73>붼һ<EBB6BC><D2BB>
+    this->Hour=NewH;
+    this->Minute=NewM;
+    this->Second=NewS;
+}
+void Clock::ShowTime()
+{
+    cout<<this->Hour<<endl;
+    cout<<this->Minute<<endl;
+    cout<<this->Second<<endl;
+}
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Clock::~Clock()
+{
+
+}
+int main(int argc, char const *argv[])
+{
+    Clock c(0,0,0);
+    
+    c.SetTime(10,20,30);
+    c.ShowTime();
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    Clock c1(c);
+    c1.ShowTime();
+    c1.SetTime(90,98,99);
+    c1.ShowTime();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day4/拷贝构造函数/clock.h

@@ -0,0 +1,26 @@
+#ifndef CLOCK
+# define CLOCK
+class Clock
+{
+    public:
+        Clock(int NewH,int NewM,int NewS);
+        Clock(Clock &c);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><ECBAAF>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼Ӳ<CBBC><D3B2>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD>á<EFBFBD>
+        void SetTime(int NewH,int NewM,int NewS);
+        void ShowTime();
+        ~Clock();//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>Ĭ<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    private:
+        int Hour,Minute,Second;
+};
+
+#endif
+
+
+/*
+#ifndef   <20><>ʶ<EFBFBD><CAB6>
+       <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
+#else
+       <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2
+#endif
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>
+
+*/

practical_exercises/10_day_practice/day4/时钟练习题/重载()的时钟.cpp

@@ -0,0 +1,25 @@
+#include <iostream>
+using namespace std;
+class Time{
+private:
+    int hh,mm,ss;
+public:
+    Time(int h=0,int m=0,int s=0):hh(h),mm(m),ss(s){}
+    void operator()(int h,int m,int s) {
+        hh=h;
+        mm=m;
+        ss=s;
+    }
+    void ShowTime(){
+        cout<<hh<<":"<<mm<<":"<<ss<<endl;
+    }
+};
+int main(){
+    Time t1(12,10,11);
+    t1.ShowTime();
+    t1.operator()(23,20,34);	
+    t1.ShowTime();
+    t1(10,10,10);               	
+    t1.ShowTime();
+    system("pause");
+}

practical_exercises/10_day_practice/day4/时钟练习题/重载++的时钟.cpp

@@ -0,0 +1,45 @@
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD>¼ʱ<EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿִ<C3BF><D6B4>һ<EFBFBD><D2BB>++<2B><><EFBFBD>㣬<EFBFBD><E3A3AC>ʱ1<CAB1>룬<EFBFBD><EBA3AC>Ҫʹ<D2AA><CAB9>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9>Զ<EFBFBD><D4B6><EFBFBD>λ<EFBFBD><CEBB>
+*/
+#include<iostream>
+using namespace std;
+class Time{
+    public:
+        Time(int h=0,int m=0,int s=0){
+            hour = h;
+            minute = m;
+            second = s;
+        }
+        void operator++();
+        void showTime(){
+            cout<<"<EFBFBD><EFBFBD>ǰʱ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>"<<hour<<":"<<minute<<":"<<second<<endl;
+        }
+
+    private:
+        int hour,minute,second;
+
+};
+
+void Time::operator++(){
+    ++second;
+    if(second=60){
+        second=0;
+        ++minute;
+        if(minute==60){
+            minute=0;
+            hour++;
+            if(hour==24){
+                hour=0;
+            }
+        }
+    }
+}
+
+int main(int argc, char const *argv[])
+{
+    Time t(23,59,59);
+    ++t;
+    t.showTime();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/基类与派生类关系/readme.md

@@ -0,0 +1,8 @@
+1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD>ϵ 
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>롣
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+<EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܰѻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣻲<EFBFBD><EFBFBD>ܰѻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>룻Ҳ<EFBFBD><EFBFBD><EFBFBD>ܰѻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+

practical_exercises/10_day_practice/day5/基类与派生类关系/基类与派生类(重要).cpp

@@ -0,0 +1,55 @@
+#include <iostream>
+using namespace std;
+class A {
+    int a;
+public: 
+    void setA(int x){ a=x; }
+    int getA(){ return a;} 
+}; 
+class B:public A{
+    int b;
+public: 
+    void setB(int x){ b=x; }
+    int getB(){ return b;} 
+};
+void f1(A a, int x)
+{ a.setA(x); }      
+void f2(A *pA, int x)
+{ pA->setA(x); }
+void f3(A &rA, int x)
+{ rA.setA(x); }
+
+int main(){
+    A a1,*pA;
+    B b1,*pB;
+    a1.setA(1);
+    b1.setA(2);
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    a1=b1;                  
+    cout<<a1.getA()<<endl;		
+    cout<<b1.getA()<<endl; 		
+    a1.setA(10);              
+    cout<<a1.getA()<<endl;		
+    cout<<b1.getA()<<endl;	
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>롣	 	
+    pA=&b1;  
+    pA->setA(20);            
+    cout<<pA->getA()<<endl;	    
+    cout<<b1.getA()<<endl;	
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+    A &ra=b1;                                    
+    ra.setA(30);               
+    cout<<pA->getA()<<endl;		
+    cout<<b1.getA()<<endl;		    
+    b1.setA(7);
+    cout<<b1.getA()<<endl;		    
+    f1(b1,100); 
+    cout<<"1111111111"<<endl;
+    cout<<b1.getA()<<endl;	//7	    
+    f2(&b1,200);
+    cout<<b1.getA()<<endl;		    
+    f3(b1,300);
+    cout<<b1.getA()<<endl;		
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/构造函数与析构函数/readme.md

@@ -0,0 +1,22 @@
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD>ȹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա
+<EFBFBD>ٹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>๹<EFBFBD>캯<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬Ҳ<EFBFBD><EFBFBD><EFBFBD>ܰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܲ<EFBFBD><EFBFBD>ù<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>£<EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>๹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>):<3A><><EFBFBD>๹<EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>),<2C><>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>),<2C><>{
+    //<2F><><EFBFBD><EFBFBD>
+}
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD>
+**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD>**
+
+- <20>ȹ<EFBFBD><C8B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+- <20>ٹ<EFBFBD><D9B9><EFBFBD><EFBFBD><EFBFBD>Ա
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><C3B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD>๹<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ξ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>Զ<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȹ<EFBFBD><C8B9><EFBFBD>**
+<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD>빹<EFBFBD><EFBFBD><EFBFBD>෴

practical_exercises/10_day_practice/day5/构造函数与析构函数/构造函数调用次序.cpp

@@ -0,0 +1,40 @@
+//Eg6-12.cpp
+#include <iostream>
+using namespace std;
+class A {
+    int x;
+public:
+     A(int i=0) {
+         x=i;
+         cout << "A-----"<<x<<endl;
+     }
+};
+class B {
+    int y;
+public:
+    B(int i) {
+        y=i;
+        cout << "B-----"<<y<<endl;
+    } 
+}; 
+class C {
+    int z;
+public:
+    C(int i) {
+        z=i;
+        cout << "C-----"<<z<<endl;
+    } 
+};
+class D : public B{
+public: 
+    C c1, c2;
+    A *a1 = new A(10);
+    A a0,a4;
+    D( ) : a4(4),c2(2),c1(1),B(1) {
+cout << "D-----5"<<endl;
+    }
+};
+int main(){
+    D d;
+    system("pause");
+}

practical_exercises/10_day_practice/day5/构造函数与析构函数/构造顺序.cpp

@@ -0,0 +1,43 @@
+#include<iostream>
+using namespace std;
+
+/*
+<EFBFBD>ȹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա
+<EFBFBD>ٹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+
+class A { 
+public: 
+	A() { cout<<"Constructing A"<<endl;} 
+	~A(){ cout<<"Destructing A"<<endl;}
+};
+class B {
+public: 
+	B() { cout<<"Constructing B"<<endl;}
+	~B(){ cout<<"Destructing B"<<endl;}
+};
+
+class C 
+{
+public: 
+	C() { cout<<"Constructing C"<<endl;}
+	~C(){ cout<<"Destructing C"<<endl;}
+	B b;
+	A a;
+};
+
+int main()
+{	
+    C c; 
+    system("pause");
+}
+
+/*
+ִ<EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Constructing B
+Constructing A
+Constructing C
+Destructing C
+Destructing A
+Destructing B
+*/

practical_exercises/10_day_practice/day5/构造函数与析构函数/没有构造函数的派生类.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+class A { 
+public: 
+    A(){ cout<<"Constructing A"<<endl; } 
+    ~A(){ cout<<"Destructing A"<<endl; }
+};
+class B:public A {
+public: 
+   ~B(){ cout<<"Destructing B"<<endl; }
+};
+int main(){
+    B b;
+    system("pause");
+}

practical_exercises/10_day_practice/day5/构造函数与析构函数/派生类构造函数.cpp

@@ -0,0 +1,27 @@
+#include <iostream>
+using namespace std;
+class Base{
+private:
+    int x;
+public:
+    Base(int a){
+        x=a;
+        cout<<"Base constructor x="<<x<<endl;
+    }
+    ~Base(){ cout<<"Base destructor..."<<endl; }
+};
+class Derived:public  Base{
+private:
+    int y;
+public:
+    Derived(int a,int b):Base(a){       //<2F><><EFBFBD><EFBFBD><EFBFBD>๹<EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>б<EFBFBD>
+        y=b;
+        cout<<"Derived constructor y="<<y<<endl;
+    }
+    ~Derived(){ cout<<"Derived destructor..."<<endl; }
+};
+int main(){
+    Derived d(1,2);
+    system("pause");
+    return 0;
+} 

practical_exercises/10_day_practice/day5/构造函数与析构函数/派生类构造函数调用顺序.cpp

@@ -0,0 +1,46 @@
+#include<iostream>
+using namespace std;
+class A { 
+public: 
+	A() { cout<<"Constructing A"<<endl;} 
+	~A(){ cout<<"Destructing A"<<endl;}
+};
+class B {
+public: 
+	B() { cout<<"Constructing B"<<endl;}
+	~B(){ cout<<"Destructing B"<<endl;}
+};
+class C {
+public: 
+	C() { cout<<"Constructing C"<<endl;}
+	~C(){ cout<<"Destructing C"<<endl;}
+};
+class D:public C 
+{
+public: 
+	D() { cout<<"Constructing D"<<endl;}
+	~D(){ cout<<"Destructing D"<<endl;}
+	B b;
+	A a;
+	C c;
+};
+
+int main()
+{
+	D d;
+    system("pause");
+}
+
+/*
+ִ<EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Constructing C
+Constructing B
+Constructing A
+Constructing C
+Constructing D
+Destructing D
+Destructing C
+Destructing A
+Destructing B
+Destructing C
+*/

practical_exercises/10_day_practice/day5/构造函数与析构函数/派生类给基类传递参数.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+using namespace std;
+class Point{
+protected:
+    int x,y;
+public:
+    Point(int a,int b=0) {
+        x=a;  y=b;
+        cout<<"constructing point("<<x<<","<<y<<")"<<endl;
+    }
+};
+class Line:public Point{
+protected:
+    int len;
+public:
+    Line(int a,int b,int l):Point(a,b) {	//<2F><><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>б<EFBFBD>
+        len=l;
+        cout<<"Constructing Line,len ..."<<len<<endl;
+    }
+};
+int main(){
+    Line L1(1,2,3);
+    system("pause");
+}

practical_exercises/10_day_practice/day5/继承访问权限/readme.md

@@ -0,0 +1,24 @@
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м̳<EFBFBD>
+1.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<65>ij<EFBFBD>Ա
+<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>
+2.<2E><><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD>ɷ<EFBFBD><C9B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>private<74><65>Ա
+3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><C9B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>protected<65><64>Ա
+4.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><C9B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>public<69><63>Ա
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>м̳<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD>ɷ<EFBFBD><EFBFBD>ʻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κγ<EFBFBD>Ա<EFBFBD>뺯<EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽΪprotected<EFBFBD>ļ̳г<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּ̳з<EFBFBD>ʽ<EFBFBD>£<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>public<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD><EFBFBD>private<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD>
+ע<EFBFBD><EFBFBD><EFBFBD>㣺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳е<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>public<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>Ϊprotected<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>߲<EFBFBD><EFBFBD>ɷ<EFBFBD><EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><EFBFBD>ʣ<EFBFBD>
+
+
+<EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
+1.ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>Ա 
+2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>Ա 
+3.ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޶<EFBFBD><DEB6><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>صĻ<D8B5><C4BB><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1>  
+

practical_exercises/10_day_practice/day5/继承访问权限/保护成员.cpp

@@ -0,0 +1,36 @@
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD>ij<EFBFBD>Ա
+<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD>
+*/
+#include<iostream>
+class B
+{	
+    private: 
+        int i;
+	protected: 
+        int j;
+	public: 
+        int k;
+};
+class D: public B
+{
+public:
+	void f() 
+	{	
+        i=1;//cannot access <20><><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD>ɷ<EFBFBD><C9B7>ʻ<EFBFBD><CABB><EFBFBD>˽<EFBFBD>г<EFBFBD>Ա
+		j=2;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><D4B7>ʻ<EFBFBD><CABB>ౣ<EFBFBD><E0B1A3><EFBFBD><EFBFBD>Ա	
+        k=3;	
+    }
+};
+int main()
+{	
+    B b; 
+	b.i=1;//cannot access ˽<>г<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>߲<EFBFBD><DFB2>ܷ<EFBFBD><DCB7><EFBFBD>
+	b.j=2; //cannot access <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>߲<EFBFBD><DFB2>ܷ<EFBFBD><DCB7><EFBFBD>
+	b.k=3;
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day5/继承访问权限/保护继承.cpp

@@ -0,0 +1,37 @@
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽΪprotected<EFBFBD>ļ̳г<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּ̳з<EFBFBD>ʽ<EFBFBD>£<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>public<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD><EFBFBD>private<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD>
+*/
+#include <iostream>
+using namespace std;
+class Base{
+    int x;
+protected:
+    int getx(){ return x; }
+public:
+    void setx(int n){ x=n; }
+    void showx(){ cout<<x<<endl; }
+};
+class Derived:protected Base{
+    int y;
+public:
+    void sety(int n){ y=n; }
+    void sety(){ y=getx();}   //<2F><><EFBFBD>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>Ա
+    void showy(){ cout<<y<<endl; }
+};
+int main(){
+    Derived obj;
+    obj.setx(10);    //<2F><><EFBFBD><EFBFBD>
+    obj.sety(20);
+    obj.showx();	 //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+    obj.showy(); 
+    system("pause");   
+}
+
+/*
+<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳лὫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>public<EFBFBD><EFBFBD>Ϊprotected<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>protected<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>
+<EFBFBD>ⲿȥʹ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>ʱ<EFBFBD>򣬻ᱨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>setx<EFBFBD><EFBFBD>showx<EFBFBD><EFBFBD><EFBFBD>ʴ<EFBFBD><EFBFBD>󣬶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><EFBFBD>ʻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>y=getx()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>
+*/

practical_exercises/10_day_practice/day5/继承访问权限/公有继承.cpp

@@ -0,0 +1,30 @@
+#include<iostream>
+using namespace std;
+class base{
+	int x;
+public:
+	void setx(int n){	x=n;	}
+	int getx(){	return x;  }
+	void showx()	{	cout<<x<<endl;  }
+};
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+class derived:public base{
+	int y;
+public:
+	void sety(int n){	y=n;	}
+	void sety(){	y=getx();    }
+	void showy()
+	{	cout<<y<<endl;   }
+};
+//<2F><><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD><E0B2BB>ֱ<EFBFBD>ӷ<EFBFBD><D3B7>ʻ<EFBFBD><CABB><EFBFBD><EFBFBD><EFBFBD>private<74><65>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>г<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+int main()
+{	derived obj;
+	obj.setx(10);	
+    obj.sety(20);
+	obj.showx();	
+    obj.showy();
+	obj.sety();
+	obj.showx();	
+    obj.showy();
+    system("pause");
+}

practical_exercises/10_day_practice/day5/继承访问权限/私有继承.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+using namespace std;
+class Base{
+    int x;
+public:
+    void setx(int n){x=n; }
+    int getx(){return x; }
+    void showx(){cout<<x<<endl; }
+};
+//˽<>м̳<D0BC>
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>public<69><63>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>private, private<74><65>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ɷ<EFBFBD><C9B7>ʡ<EFBFBD>
+class derived:private base{
+	int y;
+public:
+	void sety(int n){y=n;	}
+	void sety(){	y=getx();    }
+	void showy()	{	cout<<y<<endl;   }
+};
+int main(){
+	derived obj;
+	obj.setx(10);//cannot access
+	obj.sety(20);
+	obj.showx();//cannot access
+	obj.showy();	
+    system("pause");
+}

practical_exercises/10_day_practice/day5/虚拟继承/readme.md

@@ -0,0 +1,21 @@
+<EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD>µĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD>ڶ<EFBFBD><EFBFBD>̳з<EFBFBD>ʽ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Աʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD>⡣
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӽ̳<EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ü<EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD>ࣨPerson<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD>virtual inheritance<63>Ķ<EFBFBD><C4B6><EFBFBD>
+<EFBFBD>﷨
+class derived_class : virtual [<5B><>] base_class
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>virtual base class
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳еĻ<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>
+
+2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳еĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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+  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD>Լ<EFBFBD><D4BC>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>죨<EFBFBD><ECA3A8><EFBFBD>ڹ<EFBFBD><DAB9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD>ʼ<EFBFBD>б<EFBFBD><D0B1>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><D3BB>Ǽ<EFBFBD><C7BC>ӻ<EFBFBD><D3BB>ࣩ
+  <20><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD>Ĺ涨<C4B9><E6B6A8>
+<EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵ<EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>а<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD>˵<EFBFBD><CBB5><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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+3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD> 
+<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳з<EFBFBD>ʽ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳з<EFBFBD>ʽ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ᳢<EFBFBD>Ե<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱʡ<EFBFBD><EFBFBD><EFBFBD>޲κ<EFBFBD>ȱʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ҵ<EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

practical_exercises/10_day_practice/day5/虚拟继承/例1.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+class A { 
+public:	
+	void vf() {
+		cout<<"I come from class A"<<endl;	}
+};
+class B: public A{};
+class C: public A{};
+class D: public B, public C{};
+
+int main()
+{
+	D d;
+	d.vf ();	// error
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/虚拟继承/例2.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+class A { 
+public:	
+	void vf() {
+		cout<<"I come from class A"<<endl;	}
+};
+class B: virtual public A{};
+class C: virtual public A{};
+class D: public B, public C{};
+
+int main()
+{
+	D d;
+	d.vf ();	// okay
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/虚拟继承/派生类初始化.cpp

@@ -0,0 +1,33 @@
+#include <iostream>
+using namespace std;
+class A {
+    int a;
+public: 
+    A(int x) {
+        a=x;
+        cout<<"Virtual Bass A..."<<endl; 
+    }
+}; 
+class B:virtual public A {
+public: 
+    B(int i):A(i){ cout<<"Virtual Bass B..."<<endl; }
+};
+class C:virtual public A{
+    int x;
+public:
+    C(int i):A(i){
+        cout<<"Constructing C..."<<endl;
+        x=i; 
+    }
+};
+class ABC:public C, public B {
+public: 
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC> 
+    ABC(int i,int j,int k):C(i),B(j),A(i) //L1<4C><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><41><EFBFBD>г<EFBFBD>ʼ<EFBFBD><CABC>
+        { cout<<"Constructing ABC..."<<endl; }
+}; 
+int main(){
+    ABC obj(1,2,3);
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/虚拟继承/虚基类调用次序(重要).cpp

@@ -0,0 +1,31 @@
+//<2F><>Ҫ!!!
+#include <iostream>
+using namespace std;
+class A {
+    int a;
+public: 
+    A(){ cout<<"Constructing A"<<endl; }
+}; 
+class B {
+public: 
+    B(){ cout<<"Constructing B"<<endl;}
+}; 
+class B1:virtual public B ,virtual public A{
+public: 
+    B1(int i){ cout<<"Constructing B1"<<endl; }
+}; 
+class B2:public A,virtual public B {
+public: 
+    B2(int j){ cout<<"Constructing B2"<<endl; }
+};
+class D: public B1, public B2 {
+public:
+    D(int m,int n): B1(m),B2(n){ cout<<"Constructing D"<<endl; }
+    A a;
+}; 
+    
+int main(){
+    D d(1,2);
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day5/调用规则/readme.md

@@ -0,0 +1,21 @@
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>幹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮һʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>幹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>κι<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޲ι<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>붨<EFBFBD>幹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>౾<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>ԱҪ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>붨<EFBFBD>幹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Թ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD> 
+
+C++<2B><><EFBFBD>Ա<EFBFBD>׼<EFBFBD><D7BC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>ͬʱҲ<CAB1><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>Ĭ<EFBFBD>Ϲ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޲ι<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>඼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ฺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD>ܽ᣺
+<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ̳з<EFBFBD>ʽ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>еĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹ء<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>B<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>B<EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>A<EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Աʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>еĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹ء<EFBFBD>
+
+<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>Ĺ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>󣬲<EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>๹<EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣

practical_exercises/10_day_practice/day5/调用规则/直接基类与间接基类.cpp

@@ -0,0 +1,24 @@
+//<2F><>ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>ӻ<EFBFBD><D3BB><EFBFBD>ʱ<EFBFBD><CAB1>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>졣
+#include <iostream>
+using namespace std;
+class A { 
+    int x;
+public: 
+    A(int aa) {
+        x=aa;
+        cout<<"Constructing A"<<endl;
+    }
+    ~A(){ cout<<"Destructing A"<<endl; }
+};
+class B:public A {
+public: 
+    B(int x):A(x){ cout<<"Constructing B"<<endl; }
+};
+class C :public B{
+public: 
+    C(int y):B(y){ cout<<"Constructing C"<<endl; }
+};
+int main(){
+    C c(1);
+    system("pause");
+}

practical_exercises/10_day_practice/day6/readme.md

@@ -0,0 +1,68 @@
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>̬<EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ṹ<EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ָ<EFBFBD><EFBFBD>ֲ<EFBFBD>ͬ<EFBFBD>Ĺ<EFBFBD><EFBFBD>ܡ<EFBFBD>
+
+**<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳƾ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>ָ<EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>͸<EFBFBD><CDB8>ݵ<EFBFBD><DDB5>ú<EFBFBD><C3BA><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ľ<EFBFBD><C4BE>庯<EFBFBD><E5BAAF>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>ʱ<EFBFBD>Ͱѵ<CDB0><D1B5>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD> 
+
+**<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳƶ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>ָ<EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ľ<EFBFBD><C4BE>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ܹ<EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ľ<EFBFBD><C4BE>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Űѵ<C5B0><D1B5>ú<EFBFBD><C3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD>ԣ<EFBFBD> ---<2D><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD>)----ϵͳ<CFB5>ڱ<EFBFBD><DAB1><EFBFBD>ʱ<EFBFBD>;<EFBFBD><CDBE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ijһ<C4B3><D2BB><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ijһ<C4B3><D2BB>Ϣ<EFBFBD><CFA2><EFBFBD>δ<EFBFBD><CEB4><EFBFBD>.<2E><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD>ٶȿ<D9B6><C8BF><EFBFBD><EFBFBD>ŵ<EFBFBD>.<2E><>C++<2B>еı<D0B5><C4B1><EFBFBD>ʱ<EFBFBD><CAB1>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><D8BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֵġ<D6B5>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD>ԣ<EFBFBD> ---<2D><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD>)----ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>̬ʵ<CCAC><CAB5>ijһ<C4B3><D2BB><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ijһ<C4B3><D2BB>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ.<2E><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>Ϊϵͳ<CFB5>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͸߶<CDB8><DFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>,<2C><>C++<2B>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>̳к<CCB3><D0BA>麯<EFBFBD><E9BAAF>ʵ<EFBFBD>ֵġ<D6B5>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD>
+
+<EFBFBD>麯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD>ֵ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>롣
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣺
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>ֵ<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣨻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>м̳е<EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD> <20><><EFBFBD>ܽ<EFBFBD><DCBD>˷<EFBFBD><CBB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD><E0B6A8><EFBFBD>ij<EFBFBD>Ա<EFBFBD><D4B1>
+
+2<EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD>ʹ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD>
+
+3.Virtual<61>ؼ<EFBFBD><D8BC><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ǹ<EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>Ϊvirtual<61>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>롣
+
+4.<2E>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʱ<EFBFBD><CAB1>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>İ汾<C4B0><E6B1BE>
+
+- һ<><D2BB><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ̳<DABC><CCB3><EFBFBD>ϵ<EFBFBD>о<EFBFBD><D0BE><EFBFBD>ԶΪ<D4B6>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD> 
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD><E0B6A8><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5>麯<EFBFBD><E9BAAF><EFBFBD>汾<EFBFBD><E6B1BE>
+- ֻ<><D6BB>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5>麯<EFBFBD><E9BAAF>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><D8BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD>޹ء<DEB9>
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD>̳еij<D0B5>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еİ汾<C4B0><E6B1BE>
+- ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD>ķǾ<C4B7>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>캯<EFBFBD><ECBAAF><EFBFBD>;<EFBFBD>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD>Ϊ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD>ڼ̳в<CCB3><D0B2>νṹ<CEBD>в<EFBFBD><D0B2>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><CCAC>Ա<EFBFBD>Dz<EFBFBD><C7B2>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>̳еġ<D0B5>
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5>Ǿ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD>̬<EFBFBD>󶨵ģ<F3B6A8B5><C4A3><EFBFBD><EFBFBD>õ<EFBFBD><C3B5>Ƕ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>ʹ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD>壬C++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+5.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+why?
+<EFBFBD>ٶ<EFBFBD>ʹ<EFBFBD><EFBFBD>delete<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>delete<74><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õľ<C3B5><C4BE>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ף<EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+
+1.<2E><><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>庯<EFBFBD><EFBFBD>ԭ<EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֵ<EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD>
+Why pure function?
+ʵ<EFBFBD>ýǶȣ<EFBFBD>ռλ<EFBFBD>ֶ<EFBFBD>place-holder
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD>ӿڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>
+How?
+class X
+{
+	virtual ret_type func_name (param) = 0;
+}
+2.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+What is an abstract class?
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Using abstract class
+**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
+<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+Converting abstract class to concrete class
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD>
+
+3.C++<2B>Գ<EFBFBD><D4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޶<EFBFBD>
+
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><D0BA>д<EFBFBD><D0B4>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>麯<EFBFBD><E9BAAF>û<EFBFBD><C3BB>ʵ<EFBFBD>ִ<EFBFBD><D6B4>룬<EFBFBD><EBA3AC><EFBFBD>Բ<EFBFBD><D4B2>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD>
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Ķ<EFBFBD>̬<EFBFBD>ԡ<EFBFBD>
+- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>Ǽ򵥵ؼ̳<D8BC><CCB3>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>¶<EFBFBD><C2B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ

practical_exercises/10_day_practice/day6/纯虚函数和抽象类/抽象类.cpp

@@ -0,0 +1,46 @@
+#include<iostream>
+using namespace std;
+class Figure{
+    protected:
+        double x,y;
+    public:
+        void set(double i, double j){
+            x=i;y=j;
+        }
+        virtual void area()=0;
+};
+
+class Trianle:public Figure{
+    public:
+        void area(){
+            cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<x*y*0.5<<endl;
+        }
+};
+class Rectangle:public Figure{
+    public:
+        void area(){
+            cout<<"<EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD><EFBFBD>Σ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>"<<x*y<<endl;
+        }
+};
+
+int main(int argc, char const *argv[])
+{
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
+    Figure *pF=NULL;
+    // Figure f1; <20><><EFBFBD><EFBFBD><EFBFBD>಻<EFBFBD>ܱ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
+    Rectangle r;
+    Trianle t;
+    t.set(10,20);
+    pF=&t;
+    pF->area();
+    r.set(10,20);
+    pF=&r;
+    pF->area();
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    Figure &rF=t;
+    rF.set(20,20);
+    rF.area();
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day6/虚函数/从基类继承的成员将访问到派生类版本.cpp

@@ -0,0 +1,17 @@
+#include <iostream>
+using namespace std;
+class B{
+public: 
+    void f(){ g(); } 
+    virtual void g(){ cout << "B::g"; }
+};
+class D : public B{
+public: 
+    void g(){ cout << "D::g\n"; }
+};
+int main(){
+    D d;
+    d.f();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day6/虚函数/编程实例.cpp

@@ -0,0 +1,92 @@
+/*
+ij<EFBFBD><EFBFBD>˾<EFBFBD>о<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>Сʱ<EFBFBD><EFBFBD><EFBFBD>ȶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Աÿ<EFBFBD>µ<EFBFBD>н800Ԫ<EFBFBD><EFBFBD>
+Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>5%<25><>Сʱ<D0A1><CAB1><EFBFBD><EFBFBD>Сʱ<D0A1><CAB1><EFBFBD><EFBFBD>н<EFBFBD><D0BD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>ݡ<EFBFBD>
+Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD>Ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɻ<EFBFBD><EFBFBD><EFBFBD>Employee<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD>̳и<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>ܡ<EFBFBD> 
+*/
+#include <iostream>
+#include <string>
+using namespace std;
+class Employee{
+    public:
+        Employee(string Name ,string id){ name=Name; Id=id; }
+        string getName(){ return name; }			//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        string getID(){ return Id; }			//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>
+        float getSalary(){ return 0.0; }			//<2F><><EFBFBD><EFBFBD>нˮ
+        void print(){		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>
+            cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>: "<<name<<"\t\t <20><><EFBFBD><EFBFBD>: "<<Id<<endl;
+    }
+    private:
+        string name;
+        string Id;
+};
+class Manager:public Employee{
+    public:
+        Manager(string Name,string id,int week):Employee(Name,id){
+            WeeklySalary=week*1000;
+        }
+        float getSalary(){ return WeeklySalary; }	//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
+        void print(){			//<2F><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>н
+            cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
+                <<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
+            }
+    private:
+        float WeeklySalary;					//<2F><>н
+};
+
+
+class SaleWorker:public Employee{
+    public:
+        SaleWorker(string name,string id,int profit,int x):Employee(name,id){
+            workerMoney=baseMoney+x*0.05*profit;
+        }
+        float getSalary(){
+            return workerMoney;
+        }
+        void print(){
+            cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
+                <<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
+        }
+    private:
+        float baseMoney=800.0;
+        float workerMoney;
+};
+class HourWorker:public Employee{
+    public:
+        HourWorker(string name,string id,int h):Employee(name,id){
+            TotalMoney=h*hourMoney;
+        }
+        float getSalary(){
+            return TotalMoney;
+        }
+        void print(){
+            cout<<"Сʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
+                <<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
+        }
+    private:
+        float hourMoney=100.0;
+        float TotalMoney;
+};
+
+
+int main(){
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>빤<EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD>";
+    int week;
+    cin>>week;
+    Manager m("С<EFBFBD><EFBFBD>","11111111",week);
+    m.print();
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
+    int profit;
+    cin>>profit;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
+    int x;
+    cin>>x;
+    SaleWorker s("С<EFBFBD><EFBFBD>","222222",profit,x);
+    s.print();
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>빤<EFBFBD><EFBFBD>Сʱ<EFBFBD><EFBFBD>";
+    int hour;
+    cin>>hour;
+    HourWorker h("С<EFBFBD><EFBFBD>","333333",hour);
+    h.print();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day6/虚函数/虚函数例子.cpp

@@ -0,0 +1,66 @@
+
+//Eg7-1.cpp
+//<2F><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ,<2C>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+//<2F><><EFBFBD><EFBFBD>Employee<65><65>printΪ<74>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><C9B7>ʵ<EFBFBD>Manager<65><72>print<6E><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܷ<EFBFBD><DCB7>ʵ<EFBFBD>Employee<65><65>print
+#include<iostream>
+#include<string>
+using namespace std;
+class Employee{
+    public:
+        Employee(string name, string id);
+        string getName();
+        string getId();
+        float getSalary();
+        virtual void print();
+    private:
+        string Name;
+        string Id;
+};
+Employee::Employee(string name,string id){
+    Name=name;
+    Id=id;
+}
+string Employee::getName(){
+    return Name;
+}
+string Employee::getId(){
+    return Id;
+}
+float Employee::getSalary(){
+    return 0.0;
+}
+void Employee::print(){
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<Name<<"\t"<<"<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>"<<Id<<endl;
+}
+
+class Manager:public Employee{
+    public:
+        Manager(string name,string id,float s=0.0):Employee(name,id){
+            weeklySalary=s;
+        }
+        void setSalary(float s) { weeklySalary=s; }	//<2F><><EFBFBD>þ<EFBFBD><C3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
+        float getSalary(){ return weeklySalary; }	//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
+        void print(){			//<2F><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>н
+            cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getId()<<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
+        }
+    private:
+        float weeklySalary; //<2F><>н
+};
+
+
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>ֵ<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣨻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>м̳е<EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD> 
+<EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD>˷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>麯<EFBFBD><EFBFBD>ʹ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>Ա<EFBFBD><EFBFBD>
+*/
+int main(){
+    Employee e("С<EFBFBD><EFBFBD>","NO0001"),*pM;
+    Manager m("С<EFBFBD><EFBFBD>","NO0002",128);
+    m.print();
+    pM=&m;
+    pM->print();
+    Employee &rM=m; 
+    rM.print();
+    system("pause");
+    return 0;
+}
+//Virtual<61>ؼ<EFBFBD><D8BC><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ǹ<EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>Ϊvirtual<61>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>롣

practical_exercises/10_day_practice/day6/虚函数/虚函数特性.cpp

@@ -0,0 +1,30 @@
+#include <iostream>
+#include<string>
+using namespace std;
+class A { 
+public: 
+    void f(int i){cout<<"<EFBFBD><EFBFBD>A"<<endl;}; 
+};
+class B: public A { 
+public:
+    virtual void f(int i){cout<<"<EFBFBD><EFBFBD>B"<<endl;}
+};
+class C: public B {
+public: 
+    void f(int i){cout<<"<EFBFBD><EFBFBD>C"<<endl;}
+};
+//һ<><D2BB><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ̳<DABC><CCB3><EFBFBD>ϵ<EFBFBD>о<EFBFBD><D0BE><EFBFBD>ԶΪ<D4B6>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD> 
+class D: public C{
+public:
+    void f (int){cout<<"<EFBFBD><EFBFBD>D"<<endl;}
+};
+int main(){
+    A *pA,a;
+    B *pB, b;    C c;    D d;
+    pA=&a;    pA->f(1);		//<2F><><EFBFBD><EFBFBD>A::f
+    pB=&b;    pB->f(1);		//<2F><><EFBFBD><EFBFBD>A::f
+    pB=&c;    pB->f(1);		//<2F><><EFBFBD><EFBFBD>A::f
+    pB=&d;    pB->f(1);		//<2F><><EFBFBD><EFBFBD>A::f
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day6/虚函数/虚析构函数.cpp

@@ -0,0 +1,22 @@
+
+#include <iostream>
+using namespace std;
+class A{
+public:
+     virtual ~A(){ cout<<"call A::~A()"<<endl; }
+};
+class B:public A{
+    char *buf;
+public:
+    B(int i){buf=new char[i];}
+     ~B(){
+        delete [] buf;
+        cout<<"call B::~()"<<endl;
+}
+};
+int main(){
+    A* a=new B(10);
+    delete a;
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day7/()运算符/重载()的时钟.cpp

@@ -0,0 +1,25 @@
+#include <iostream>
+using namespace std;
+class Time{
+private:
+    int hh,mm,ss;
+public:
+    Time(int h=0,int m=0,int s=0):hh(h),mm(m),ss(s){}
+    void operator()(int h,int m,int s) {
+        hh=h;
+        mm=m;
+        ss=s;
+    }
+    void ShowTime(){
+        cout<<hh<<":"<<mm<<":"<<ss<<endl;
+    }
+};
+int main(){
+    Time t1(12,10,11);
+    t1.ShowTime();
+    t1.operator()(23,20,34);	
+    t1.ShowTime();
+    t1(10,10,10);               	
+    t1.ShowTime();
+    system("pause");
+}

practical_exercises/10_day_practice/day7/=号运算符/=例题.cpp

@@ -0,0 +1,16 @@
+//<2F><><EFBFBD><EFBFBD>ch.cppi
+#include <iostream>
+using namespace std;
+class X{
+public:
+	X &operator = (const X & x) 
+	{cout << "a:"; return *this;};
+};
+int main ()
+{
+	X obj1, obj2, obj3;
+	obj1 = obj2;          //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ء<EFBFBD>=<3D><>
+	obj1.operator= (obj2); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ء<EFBFBD>=<3D><>
+	obj1 = obj2 = obj3;    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ء<EFBFBD>=<3D><>
+    system("pause");
+}

practical_exercises/10_day_practice/day7/[]与()例题/example1.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+using namespace std;
+class X
+{public:
+	int operator() (int i=0)
+	{ cout << "X::operator(" << i << ")" << endl; return i; };
+	int operator() (int i, int j)
+	{ cout << "X::operator(" << i << "," << j << ")" << endl; 
+			return i; };
+	int operator[] (int i)
+	{ cout << "X::operator[" << i << "]" << endl; return i; };
+	int operator[] (char * cp)
+	{ cout << "X::operator[" << cp << "]" << endl; return 0; };
+};
+int main (void)
+{	X obj;	int i = obj (obj (1), 2);
+	int a = obj[i];	int b = obj["abcd"];
+    cout<<"a="<<a<<endl;
+    cout<<"b="<<b<<endl;
+    system("pause");
+}

practical_exercises/10_day_practice/day7/[]运算符/[]例题(重点).cpp

@@ -0,0 +1,50 @@
+//Eg8-9.cpp
+#include <iostream>
+#include <cstring>
+using namespace std;
+struct Person{                		//ְ<><D6B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD>Ľṹ
+		double salary;
+		char *name;
+};
+class SalaryManaege{
+		Person *employ;          	 //<2F><><EFBFBD><EFBFBD>ְ<EFBFBD><D6B0><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		int max;                  		//<2F><><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><C2B1>Ͻ<EFBFBD>
+		int n;                    		//<2F><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ʵ<EFBFBD><CAB5>ְ<EFBFBD><D6B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+public:
+	SalaryManaege(int Max=0){
+		max=Max;
+		n=0;
+		employ=new Person[max];
+	}
+    double &operator[](char *Name) {       	//<2F><><EFBFBD><EFBFBD>[]<5D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		Person *p;
+		for(p=employ;p<employ+n;p++)   
+			//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>   	
+			if(strcmp(p->name,Name)==0) 
+				return p->salary;
+		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		p=employ + n++; 
+		p->name=new char[strlen(Name)+1];
+		strcpy(p->name,Name);
+		p->salary=0;
+		return p->salary;
+	}
+
+	void display(){      								
+		for(int i=0;i<n;i++)
+			cout<<employ[i].name<<"   "<<employ[i].salary<<endl;
+		}
+};
+int main(){
+    SalaryManaege s(3);
+    s["<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"]=2188.88;
+    s["<EFBFBD><EFBFBD>˹"]=1230.07;
+    s["<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"]=3200.97;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\t"<<s["<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"]<<endl;          cout<<"<EFBFBD><EFBFBD>˹\t"<<s["<EFBFBD><EFBFBD>˹"]<<endl;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\t"<<s["<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"]<<endl;
+  
+    cout<<"-------<2D><>Ϊdisplay<61><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD>--------\n\n";
+    s.display();
+    system("pause");
+}
+

practical_exercises/10_day_practice/day7/readme.md

@@ -0,0 +1,145 @@
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>C++<2B><>һ<EFBFBD><D2BB>ǿ<EFBFBD><C7BF><EFBFBD><EFBFBD><EFBFBD>ܡ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չC++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>ܣ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>ԺͿɶ<CDBF><C9B6>ԡ<EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,  <20><>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>++<2B><>--<2D><>[]<5D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,  thisָ<73><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><<<EFBFBD><EFBFBD>>><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+aa@bb    <20>ɽ<EFBFBD><C9BD>ͳ<EFBFBD>  aa.operator@(bb)
+               <20><><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD> operator@(aa,bb)
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>,<2C>Ͱ<EFBFBD><CDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><D8BD><EFBFBD>
+
+```c++
+class X{
+public:
+	void operator+(int);
+	X(int);
+};
+void operator+(X,X);
+void operator+(X,double);
+```
+2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
+
+<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD>̬<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ʲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thisָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>ݵġ<EFBFBD> 
+
+```c++
+class Complex{
+		double real,image;
+public:
+		Complex operator+(Complex b){<7B><><EFBFBD><EFBFBD>}
+......
+};
+```
+<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD> <20><>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Complex<EFBFBD><EFBFBD><EFBFBD>ļӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
+
+```c++
+class Complex{
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		friend Complex operator+(Complex a,Complex b);		//<2F><><EFBFBD><EFBFBD>
+//......
+};
+
+Complex  operator+(Complex a,Complex b){<7B><><EFBFBD><EFBFBD>}     		//<2F><><EFBFBD><EFBFBD>
+```
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+
+1<EFBFBD><EFBFBD>һԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+һԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>Ҫһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>&<26><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?<3F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>++<2B><><EFBFBD>ȡ<EFBFBD>
+
+2<EFBFBD><EFBFBD>һԪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽΪ<EFBFBD><EFBFBD>
+
+@a     <20><>    a@ 		//<2F><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
+
+a.operator@()                   	// <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>@
+
+<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>@<40><><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>a<EFBFBD><61><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+@a<><61><EFBFBD><EFBFBD>ǰ׺һԪ<D2BB><D4AA><EFBFBD>㣬<EFBFBD>硰++a<><61><EFBFBD><EFBFBD>
+
+a@<40><>ʾ<EFBFBD><CABE>׺<EFBFBD><D7BA><EFBFBD>㣬<EFBFBD>硰a++<2B><><EFBFBD><EFBFBD>
+
+3<EFBFBD><EFBFBD>@a<><61><EFBFBD><EFBFBD>C++<2B><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ֮һ
+
+a.operator@()
+
+operator@(a) 
+
+4.һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>£<EFBFBD>
+
+```c++
+class X{
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		T operator@(){<7B><><EFBFBD><EFBFBD>};
+}
+```
+T<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>@<40>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD><CDA1><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>Ͽ<EFBFBD><CFBF><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thisָ<EFBFBD>롣
+
+5.ǰ<><C7B0><EFBFBD><EFBFBD>(<28><>)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>)
+
+C++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC><EFBFBD>int <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ
+
+```c++
+//ǰ׺
+operator -- ();
+operator -- (X & x);
+//<2F><>׺
+operator -- (int);
+operator -- (X & x, int);
+```
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>=
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>=<3D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+ֻ<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>û<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD>ð汾<EFBFBD><EFBFBD><EFBFBD><EFBFBD>bit-by-bit<69><74><EFBFBD><EFBFBD>
+
+<EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[]
+
+1<EFBFBD><EFBFBD>[ ]<5D><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>£<EFBFBD>
+
+```c++
+class X{
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		X& operator[](int n);
+};
+```
+2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[]<5D><>Ҫע<D2AA><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+- []<5D><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thisָ<73>봫<EFBFBD>ݵģ<DDB5><C4A3><EFBFBD>2<EFBFBD><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>
+- <20><><EFBFBD><EFBFBD>[]<5D>ȿ<EFBFBD><C8BF>Գ<EFBFBD><D4B3><EFBFBD><EFBFBD>ڸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>=<3D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Գ<EFBFBD><D4B3><EFBFBD><EFBFBD>ڸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>=<3D><><EFBFBD><EFBFBD><EFBFBD>ұߣ<D2B1><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>[]ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
+- **[]ֻ<>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ķǾ<C4B7>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>**<2A><>
+
+<EFBFBD>塢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>( ) 
+
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>( )<29>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD>ء<EFBFBD><D8A1><EFBFBD>ֻ<EFBFBD>ܱ<EFBFBD><DCB1><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ij<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>( )<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>£<EFBFBD>
+
+```c++
+class X{
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		X& operator( )(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+}<7D><>
+```
+
+<EFBFBD><EFBFBD><EFBFBD>еIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>԰<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>( )<29>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>£<EFBFBD>
+
+X Obj;              		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+Obj()(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>);  		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ1
+
+Obj(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>);       		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ2

practical_exercises/10_day_practice/day7/一元运算符/秒钟自增运算.cpp

@@ -0,0 +1,76 @@
+//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Time<6D><65><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㡣
+
+#include<iostream>
+using namespace std;
+
+class Time{
+    private:
+        int hour,minute,second;
+    public:
+        Time(int h,int m, int s);
+        Time operator++();
+        //<2F><>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>
+        friend Time operator--(Time &t);
+        void display(); 
+};
+
+Time::Time(int h, int m, int s){
+    hour=h;
+    minute=m;
+    second=s;
+    if (hour>=24)
+        hour=0;
+    if (minute>=60)
+        minute=0;
+    if (second>=60)
+        second=0;
+}
+
+Time Time::operator++(){
+    ++second;
+    if (second>=60){
+        second=0;
+        ++minute;
+        if(minute>=60){
+            minute=0;
+            ++hour;
+            if(hour>=24)
+                hour=0;
+        }
+    }
+    return *this;       
+}
+Time operator--(Time &t){
+    --t.second;
+    if (t.second>=60){
+        t.second=0;
+        ++t.minute;
+        if(t.minute>=60){
+            t.minute=0;
+            ++t.hour;
+            if(t.hour>=24)
+                t.hour=0;
+        }
+    }
+    return t;  
+}
+void Time::display(){
+    cout<<hour<<":"<<minute<<":"<<second<<endl;
+}
+int main(int argc, char const *argv[])
+{
+    Time t1(23,59,59);
+    t1.display();
+    ++t1; //<2F><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+    t1.display();
+    t1.operator++(); //<2F><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+    t1.display();
+    Time t2(24,60,60);
+    t2.display();
+    ++t2;
+    t2.display();
+    --t2;
+    t2.display();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day7/一元运算符/计数器前后自增.cpp

@@ -0,0 +1,47 @@
+//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>counter<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>ʵ<EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>
+#include<iostream>
+using namespace std;
+class Counter{
+    private:
+        int n;
+    public:
+        Counter(int i=0):n(i){};
+        Counter operator++();
+        Counter operator++(int);
+        friend Counter operator--(Counter &c);
+        friend Counter operator--(Counter &c,int);
+        void display();
+};
+Counter Counter::operator++(){
+    ++n;
+    return *this;
+}
+Counter Counter::operator++(int){
+    n++;
+    return *this;
+}
+Counter operator--(Counter &c){
+    --c.n;
+    return c;
+}
+Counter operator--(Counter &c,int){
+    c.n--;
+    return c;
+}
+void Counter::display(){
+    cout<<"counter number="<<n<<endl;
+}
+int main(int argc, char const *argv[])
+{
+    Counter a;
+    ++a;
+    a.display();
+    a++;
+    a.display();
+    --a;
+    a.display();
+    a--;
+    a.display();
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day7/二元运算符/1.类运算符重载.cpp

@@ -0,0 +1,67 @@
+//<2F>и<EFBFBD><D0B8><EFBFBD><EFBFBD><EFBFBD>Complex<65><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>ļӡ<C4BC><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD><CBA1><EFBFBD><EFBFBD>ȸ<EFBFBD><C8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㡣
+#include<iostream>
+using namespace std;
+class Complex {
+    private:
+        double r,i;
+    public:
+        Complex(double R=0,double I=0):r(R),i(I){};
+        Complex operator+(Complex b);
+        Complex operator-(Complex b);
+        Complex operator*(Complex b);
+        Complex operator/(Complex b);
+        void display();
+};
+
+Complex Complex::operator +(Complex b)
+{
+    return Complex(r+b.r,i+b.i);
+}
+Complex Complex::operator -(Complex b)
+{
+    return Complex(r-b.r,i-b.i);
+}
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>㷨
+Complex Complex::operator *(Complex b)
+{   
+    Complex t;
+    t.r=r*b.r-i*b.i;
+    t.i=r*b.i+i*b.r;
+    return t;
+}
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
+Complex Complex::operator /(Complex b) {
+    Complex t;
+    double x;
+    x=1/(b.r*b.r+b.i*b.i);
+    t.r=x*(r*b.r+i*b.i);
+    t.i=x*(i*b.r-r*b.i);
+    return t;
+}
+void Complex::display(){
+    cout<<r;
+    if (i>0) cout<<"+";
+    if (i!=0) cout<<i<<"i"<<endl;
+    //}display();
+};
+
+int main(void) {
+    Complex c1(1,2),c2(3,4),c3,c4,c5,c6;
+    Complex a,b(2,3);
+    a=b+2;       			//<2F><>ȷ
+    // a=2+b;       			//<2F><><EFBFBD><EFBFBD>   
+    a.display();  
+    c3=c1+c2;
+    c4=c1-c2;
+    c5=c1*c2;
+    c6=c1/c2;
+    c1.display();
+    c2.display();
+    c3.display();
+    c4.display();
+    c5.display();
+    c6.display();
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day7/二元运算符/2.友元运算符实现.cpp

@@ -0,0 +1,84 @@
+
+/*
+<EFBFBD><EFBFBD>C++<2B>ı<EFBFBD>׼<EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>std<74><64>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD>˸<EFBFBD><CBB8><EFBFBD><EFBFBD><EFBFBD>Complex<65><78>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Complex<EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>+<2B><>-<2D><>*<2A><>/<2F><>
+<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>using namespace std<74><64>std<74><64><EFBFBD>ֿռ<D6BF><D5BC><EFBFBD><EFBFBD>뱾<EFBFBD><EBB1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD>򱾳<EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Complex<EFBFBD><EFBFBD><EFBFBD><EFBFBD>std<EFBFBD><EFBFBD><EFBFBD>ֿռ<EFBFBD><EFBFBD>е<EFBFBD>Complex<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+/*
+<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ҿ<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>+<2B><>-<2D><>*<2A><>/ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷dz<EFBFBD>Ա<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>֡<EFBFBD>
+*/
+
+//<2F><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>2+b<><62><EFBFBD>⡣
+#include<iostream>
+
+
+class Complex{
+    private:
+        double r,i;
+    public:
+        Complex(double R=0,double I=0):r(R),i(I){};
+        friend Complex operator+(Complex a, Complex b);
+        friend Complex operator-(Complex a, Complex b);
+        friend Complex operator*(Complex a, Complex b);
+        friend Complex operator/(Complex a, Complex b);
+
+        friend Complex operator+(Complex a,double b){
+            return Complex(a.r+b,a.i);
+        }
+        friend Complex operator+(double a,Complex b){
+            return Complex(a+b.r,b.i);
+        }
+        
+        void display();
+};
+
+Complex operator+(Complex a, Complex b){
+    return Complex(a.r+b.r,a.i+b.i); 
+}
+Complex operator-(Complex a, Complex b){
+    return Complex(a.r-b.r,a.i-b.i);
+}
+Complex operator*(Complex a, Complex b){
+    Complex t;
+    t.r = a.r*b.r-a.i*b.i;
+    t.i = a.r*b.i+a.i*b.r;
+}
+Complex operator/(Complex a, Complex b){
+    Complex t;
+    double x;
+    x = 1/(b.r*b.r+b.i*b.i);
+    t.r = x*(a.r*b.r+a.i*b.i);
+    t.i = x*(a.i*b.r-a.r*b.i);
+    return t;
+}
+
+void Complex::display(){
+    std::cout<<r;
+    if(i>0)
+        std::cout<<"+";
+    if(i!=0)
+        std::cout<<i<<"i"<<std::endl;
+}
+int main(void) {
+    Complex c1(1,2),c2(3,4),c3,c4,c5,c6; 
+    Complex a,b(2,3);
+    Complex a1=b+2;       			
+    Complex a2=2+b;       	 
+    a1.display();
+    a2.display();  
+    c3=c1+c2;
+    c4=c1-c2;
+    c5=c1*c2;
+    c6=c1/c2;
+    c1.display();
+    c2.display();
+    c3.display();
+    c4.display();
+    c5.display();
+    c6.display();
+    system("pause");
+    return 0;
+}
+

practical_exercises/10_day_practice/day7/综合例题/重要.cpp

@@ -0,0 +1,70 @@
+//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>String<6E><67>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롢<EFBFBD><EBA1A2><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>+=<3D><>==<3D><>!=<3D><><<3C><>><3E><>>=<3D><>[ ]<5D><><EFBFBD><EFBFBD><EFBFBD>㡣
+#include <iostream>
+#include <cstring>
+using namespace std;
+class String {
+private:
+int length;                     		//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+char *sPtr;                     		//<2F><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
+void setString( const char *s2);	
+friend ostream &operator<<(ostream &os, const String &s); 
+friend istream &operator>>(istream &is, String &s);  //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+public:
+    String( const char * = "" );                   
+    const String &operator=(const String &R); 		//<2F><><EFBFBD>ظ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> =
+    const String &operator+=(const String &R);		//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> +=
+    bool operator==(const String &R);				//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱȽ<C8B1> ==
+    bool operator!=(const String &R);				//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2>ȱȽ<C8B1> !=
+    bool operator!() ;               				//<2F>ж<EFBFBD><D0B6>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA>
+    bool operator<(const String &R) const;     		//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>ڱȽ<DAB1> <
+    bool operator>(const String &R);                	//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>ڱȽ<DAB1> >
+    bool operator>=(const String &R);             	//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>ڵ<EFBFBD><DAB5>ڱȽ<DAB1>
+    char &operator[](int);                         	//<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><C2B1><EFBFBD><EFBFBD><EFBFBD>
+    ~String();  
+};
+const String &String::operator+=(const String &R) {
+    char *temp = sPtr;              
+    length += R.length;           
+    sPtr = new char[length+1]; 
+    strcpy(sPtr,temp );           
+    strcat(sPtr,R.sPtr );         
+    delete [] temp;                 
+    return *this;                         
+}
+bool String::operator==(const String &R){return strcmp(sPtr,R.sPtr)==0;}
+bool String::operator!=(const String & R){return !(*this==R);}
+bool String::operator!(){return length ==0;}
+bool String::operator<(const String &R)const{return strcmp(sPtr,R.sPtr)<0;}
+bool String::operator>(const String &R){return R<*this;}
+bool String::operator>=(const String &R){return !(*this<R);}
+char &String::operator[](int subscript){return sPtr[subscript];}
+int main(){
+    String s1("happy"),s2("new year"),s3;
+    cout << "s1 is " << s1 << "\ns2 is " << s2 << "\ns3 is " << s3       
+    << "\n<EFBFBD>Ƚ<EFBFBD>s2<EFBFBD><EFBFBD>s1:"
+    << "\ns2 ==s1<73><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> " << ( s2 == s1 ? "true" : "false")
+    << "\ns2 != s1<73><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> " << ( s2 != s1 ? "true" : "false")
+    << "\ns2 >  s1<73><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> " << ( s2 >  s1 ? "true" : "false") 
+    << "\ns2 <  s1<73><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> " << ( s2 <  s1 ? "true" : "false") 
+    << "\ns2 >= s1<73><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> " << ( s2 >= s1 ? "true" : "false");
+    cout << "\n\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>s3<EFBFBD>Ƿ<EFBFBD>Ϊ<EFBFBD><EFBFBD>: ";                         	
+    if (!s3){
+        cout << "s3<EFBFBD>ǿմ<EFBFBD>"<<endl;                           	//L3
+        cout<<"<EFBFBD><EFBFBD>s1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>s3<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>";                    		       	
+        s3 = s1;                                         
+        cout << "s3=" << s3 << "\n";                          	//L5
+    }
+    cout << "s1 += s2 <20>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD>ǣ<EFBFBD>s1=";                      	//L6
+    s1 += s2;                                       
+    cout << s1;                                             		//L7
+                                                        
+    cout << "\ns1 +=  to you <20>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD>ǣ<EFBFBD>";                     	//L8
+    s1 += " to you";                               
+    cout << "s1 = " << s1 <<endl;                              	//L9
+    s1[0] = 'H';      
+    s1[6] = 'N';
+    s1[10] = 'Y';
+    cout << "s1 = " << s1 << "\n";                               //L10
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day8/STL/map_se.cpp

@@ -0,0 +1,48 @@
+#include<iostream>
+#include<string>
+#include<map>
+using namespace std;
+
+int main(int argc, char const *argv[])
+{
+    string name[]={"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>","<EFBFBD><EFBFBD><EFBFBD><EFBFBD>","<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"};
+    double salary[]={1200,2000,1450};
+    map<string,double>sal;
+    map<string,double>::iterator p;
+    for(int i=0;i<3;i++){
+        sal.insert(make_pair(name[i],salary[i]));
+    }
+    sal["tom"]=6156;
+    sal["bob"]=5999;
+    for(p=sal.begin();p!=sal.end();p++){
+        cout<<p->first<<"\t"<<p->second<<endl;
+    }
+    string person;
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:";
+    cin>>person;
+    int flag=1;
+    for(p=sal.begin();p!=sal.end();p++)
+        if(p->first==person){
+            cout<<p->second<<endl;    
+            flag=0; 
+        }
+    if(flag)
+        cout<<"û<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl; 
+
+    cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:";
+    cin>>person;
+    map<string,double>::iterator it;
+    it = sal.find(person);
+    if(it!=sal.end()){
+        cout<<"<EFBFBD><EFBFBD><EFBFBD>ҳɹ<EFBFBD><EFBFBD><EFBFBD>"<<(*it).first<<":"<<(*it).second<<endl;
+        sal.erase(it);
+        cout<<"ɾ<EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>"<<endl;
+    }
+    cout<<"ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>Ϊ"<<endl;
+    for(p=sal.begin();p!=sal.end();p++){
+        cout<<p->first<<p->second<<endl;
+    }
+
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day8/readme.md

@@ -0,0 +1,187 @@
+ģ<EFBFBD>壨template<EFBFBD><EFBFBD><EFBFBD><EFBFBD>C++ʵ<>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>Ƶ<EFBFBD><C6B5><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ߣ<EFBFBD><DFA3>Ƿ<EFBFBD><C7B7>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹ص<DEB9>ͨ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƽ<EFBFBD><C6BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>
+ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>C++<2B><><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><D4BD>µ<EFBFBD>?<3F><><EFBFBD>Ի<EFBFBD><D4BB>ƣ<EFBFBD><C6A3><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹ص<DEB9>ͨ<EFBFBD><CDA8><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ʣ<EFBFBD><CAA3>dz<EFBFBD><C7B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>븴<EFBFBD>õ<EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD> 
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD>Լ<EFBFBD>STL<EFBFBD><EFBFBD><EFBFBD>еļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+һ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD> 
+1<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+ģ<EFBFBD><EFBFBD><EFBFBD>ǶԾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>Եĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD>ԵĹ<EFBFBD><EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>߼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD>ͬ<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩһ<EFBFBD>ִ<EFBFBD><EFBFBD>빲<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD>ơ<EFBFBD>
+һ<EFBFBD><EFBFBD>ģ<EFBFBD>岢<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʵʵ<EFBFBD><EFBFBD><EFBFBD>ڵĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ
+2<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>
+3.<2E><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><E5BAAF>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ͨ<EFBFBD>õĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD>ֲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塣
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ijЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δȷ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ЩԪ<EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>岻<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>๦<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD>ͬ<EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>
+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD>
+```c++
+template <class T1, class T2,<2C><>><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>){
+   	<09><><EFBFBD><EFBFBD> 								//<2F><><EFBFBD><EFBFBD>ģ<EFBFBD>嶨<EFBFBD><E5B6A8><EFBFBD><EFBFBD>
+}
+```
+template<EFBFBD>Ƕ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>Ĺؼ<EFBFBD><EFBFBD>֣<EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><><3E>е<EFBFBD>T1<54><31>T2<54><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>class<73><73>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD>int<EFBFBD><EFBFBD>double֮<EFBFBD>ࡣ
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>T1<EFBFBD><EFBFBD>T2
+2<EFBFBD><EFBFBD>ʹ<EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD> <20>ڶ<EFBFBD><DAB6><EFBFBD>ģ<EFBFBD><C4A3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>template<74><65><EFBFBD><EFBFBD><EFBFBD>뺯<EFBFBD><EBBAAF>ģ<EFBFBD>嶨<EFBFBD><E5B6A8>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䡣
+```c++
+template <class T>
+int x;                 //<2F><><EFBFBD>󣬲<EFBFBD><F3A3ACB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD><EFBFBD><EFBFBD>
+T min(T a,T b){<7B><>}
+```
+<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ùؼ<C3B9><D8BC><EFBFBD>class<73><73>typename<6D>޶<EFBFBD><DEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬ģ<E2A3AC><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD>Գ<EFBFBD><D4B3><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+```c++
+template <class T1,class T2,class T3,int T4>
+T1 fx(T1 a, T 2 b, T3 c){<7B><>}
+```
+<EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD>T4ֻ<EFBFBD><EFBFBD>ʹ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD> <20><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>class<73><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC><EFBFBD>class<73><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD>ͬ<EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>class<73><73>ʾT<CABE><54>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD>int<6E><74>float<61><74>char<61>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>struct<63><74>enum<75><6D>class<73><73><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+<EFBFBD><EFBFBD> Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD>͹ؼ<CDB9><D8BC><EFBFBD>class<73><73><EFBFBD><EFBFBD>׼C++<2B><><EFBFBD><EFBFBD>?<3F><><EFBFBD><EFBFBD>typename<6D><65>Ϊģ<CEAA><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ؼ<CDB9><D8BC>֣<EFBFBD>ͬʱҲ֧<D2B2><D6A7>ʹ<EFBFBD><CAB9>class<73><73><EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><E7A3AC>min<69><6E><EFBFBD><EFBFBD><EFBFBD><EFBFBD>template <class T>д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>ȫ<EFBFBD>ȼ۵ģ<DBB5>
+```c++
+template <typename T> 
+T min(T a,T b){<7B><>}
+```
+
+3.<2E><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
+- ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
+ģ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жԺ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>εľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>ȷ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+- <20><><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ֻ<EFBFBD>ڵ<EFBFBD>1<EFBFBD>ν<EFBFBD><CEBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
+```c++
+int x=min(2,3);     
+int y=min(3,9);
+int z=min(8.5);
+```
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ڵ<EFBFBD>1<EFBFBD>ε<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>͵IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>1<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵ<EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+- ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ
+
+**<2A><>ʽʵ<CABD><CAB5><EFBFBD><EFBFBD>**
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>ж<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>Ϊģ<EFBFBD>庯<EFBFBD><EFBFBD>
+```c++
+template <typename T> T max (T, T);
+<EFBFBD><EFBFBD>
+int i = max (1, 2); 
+float f = max (1.0, 2.0);
+char ch = max (<28><>a<EFBFBD><61>, <20><>A<EFBFBD><41>);
+<EFBFBD><EFBFBD>
+```
+<EFBFBD><EFBFBD>ʽʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>壬ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>
+
+**<2A><>ʾʵ<CABE><CAB5><EFBFBD><EFBFBD>explicit instantiation**
+ʱ<EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>ֵ
+<EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD>﷨<EFBFBD><EFBFBD>ʽ::
+ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><<3C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><>,<2C><><EFBFBD><EFBFBD>ֵ,<2C><>> (<28><><EFBFBD><EFBFBD>)
+```c++
+template <class T> T max (T, T);
+<EFBFBD><EFBFBD>
+int i = max (1, <20><>2<EFBFBD><32>); 
+// error: data type can<61><6E>t be deduced
+int i = max<int> (1, <20><>2<EFBFBD><32>);
+<EFBFBD><EFBFBD>
+```
+4.<2E><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD>
+- <20>ػ<EFBFBD><D8BB><EFBFBD>ԭ<EFBFBD><D4AD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ijЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD>ʺ<EFBFBD><EFBFBD>ض<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ȣ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD>磺<EFBFBD><EFBFBD>max<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+```c++
+char * cp = max (<28><>abcd<63><64>, <20><>1234<33><34>);
+ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>char * max (char * a, char * b){return a > b ? a : b;}
+```
+<EFBFBD><EFBFBD><EFBFBD>϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ıȽ<EFBFBD>Ϊ<EFBFBD><EFBFBD>
+```c++
+char * max (char * a, char * b)
+{	return strcmp(a, b)>0 ? a : b;   }
+```
+- <20>ػ<EFBFBD>
+<EFBFBD><EFBFBD>ν<EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>岻<EFBFBD>ܴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⺯<EFBFBD><EFBFBD>ר<EFBFBD>Ŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+ģ<EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>
+template <> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><<3C>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>) {
+		<09><><EFBFBD><EFBFBD> 							
+}
+˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD> template < ><3E><>ģ<EFBFBD><C4A3><EFBFBD>ػ<EFBFBD><D8BB>Ĺؼ<C4B9><D8BC>֣<EFBFBD>< ><3E>в<EFBFBD><D0B2><EFBFBD>Ҫ<EFBFBD>κ<EFBFBD><CEBA><EFBFBD><EFBFBD>ݣ<EFBFBD>
+<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>< ><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+
+5.˵<><CBB5>
+<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><C8B5>ã<EFBFBD>
+<EFBFBD><EFBFBD> <20><>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>˺<EFBFBD><CBBA><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>C++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>ʵ<EFBFBD>ν<EFBFBD><CEBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
+6.<2E><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
+<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>о<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƥ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
+<EFBFBD><EFBFBD>ȫƥ<EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ȫƥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵķ<EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>
+1.<2E><>ģ<EFBFBD><C4A3><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽṹ<EFBFBD>ͳ<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD>ͬ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ࡣ
+<EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+˫<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD>
+```c++
+class doubleStack{
+    private:
+    double data[size];
+    <20><><EFBFBD><EFBFBD>
+};
+```
+<EFBFBD>ַ<EFBFBD>ջ<EFBFBD><EFBFBD>
+```c++
+class charStack{
+    private:
+    char data[size];
+    <20><><EFBFBD><EFBFBD>
+};
+```
+<EFBFBD><EFBFBD>Щջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ʵ<EFBFBD>֡<EFBFBD>
+
+2.<2E><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+```c++
+template<class T1,class T2,<2C><>>
+class <20><><EFBFBD><EFBFBD>{
+    	<09><><EFBFBD><EFBFBD>								// <20><><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>붨<EFBFBD><EBB6A8>
+}
+```
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>T1<EFBFBD><EFBFBD>T2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD>
+
+3.<2E><><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָij<EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ʱֻ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>͵ij<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶģ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󡢺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>ָ<EFBFBD>룬**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD>˫<EFBFBD><CBAB><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>void<69><64>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>**<2A><>
+
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>T1<EFBFBD><EFBFBD>T2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>T3<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+```c++
+template<class T1,class T2,int T3>
+```
+<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪT1<EFBFBD><EFBFBD>T2<EFBFBD>ṩһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>ΪT3ָ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>10<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+4.<2E><>ģ<EFBFBD><C4A3><EFBFBD>ij<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ⶨ<EFBFBD>壬<EFBFBD>﷨
+template <ģ<><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>> <0B><><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD> <20><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><ģ<><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>::<3A><>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>){	<09><><EFBFBD><EFBFBD>};
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD>볣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD>ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>
+5.<2E><>ģ<EFBFBD><C4A3><EFBFBD>ػ<EFBFBD>
+
+<EFBFBD>ػ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>9-9<>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊij<CEAA><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD>дһ<D0B4><D2BB>ģ<EFBFBD><C4A3><EFBFBD>ࡣ 
+<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>壬<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+<EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+```c++
+template <> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><<3C>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>::<3A>ػ<EFBFBD><D8BB><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>){
+   <20><><EFBFBD><EFBFBD> 								//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+}
+```
+
+```c++
+template<>  void Array<char *>::Sort(){
+    for(int i=0;i<Size-1;i++){
+        int p=i;
+        for(int j=i+1;j<Size;j++)
+            if(strcmp(a[p],a[j])<0)
+                p=j;
+        char* t=a[p];
+        a[p]=a[i];
+        a[i]=t;
+    }
+}
+```

practical_exercises/10_day_practice/day8/函数模板/例1.cpp

@@ -0,0 +1,36 @@
+//<2F><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>԰<EFBFBD><D4B0><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>͵IJ<CDB5><C4B2><EFBFBD>
+#include<iostream>
+using namespace std;
+
+
+template <class T>
+//ʵ<>ֽ<EFBFBD><D6BD><EFBFBD>
+void sort(T &a, int n){
+    for (int i=0;i<n;i++){
+        int p=i;
+        for (int j=i;j<n;j++)
+            if(a[p]<a[j])
+                p=j;
+        int t=a[i];	
+        a[i]=a[p];		
+        a[p]=t;
+    }
+}
+template <class T>
+void display(T& a,int n) {
+    for(int i=0;i<n;i++)
+        cout<<a[i]<<"\t"<<endl;
+}
+
+
+int main(int argc, char const *argv[])
+{
+    int a[]={1,41,2,5,8,21,23};
+    char b[]={'a','x','y','e','q','g','o','u'};
+    sort(a,7);
+    sort(b,8);
+    display(a,7);
+    display(b,8);
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day8/函数模板/模板特化.cpp

@@ -0,0 +1,26 @@
+//Eg9-6.cpp
+#include <iostream>
+#include<cstring>
+using namespace std;
+template <class T>
+T Max(T a,T b) {
+    return (a>b)?a:b;
+}
+//<2F>ػ<EFBFBD>
+//template <> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><<3C>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>) {}
+template<>char * Max<char *>(char *a,char *b) {
+    return (strcmp(a,b)>=0)?a:b;
+}
+int main(){
+    float  c=5.1,d=3.2;
+    cout<<"2,3<><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<Max(3,2)<<endl;   
+    cout<<"c,d<><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<Max(c,d)<<endl;   
+    cout<<Max("xbv","xyce")<<endl;         
+    system("pause");
+}
+/*
+<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><C8B5>ã<EFBFBD>
+<EFBFBD><EFBFBD> <20><>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>˺<EFBFBD><CBBA><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>C++<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>ʵ<EFBFBD>ν<EFBFBD><CEBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+*/

practical_exercises/10_day_practice/day8/函数模板/求最大值.cpp

@@ -0,0 +1,21 @@
+//Eg9-2.cpp
+#include <iostream>
+using namespace std;
+template <class T>
+T Max(T a,T b) {
+		return (a>b)?a:b;
+}
+/*
+C++<2B><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD>У<EFBFBD>ֻ<EFBFBD>Ǽ򵥵ؽ<F2B5A5B5>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻<EFBFBD>ɵ<EFBFBD><C9B5><EFBFBD>ʵ<EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><E5BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5>κ<EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
+*/
+int main(){
+    double a=2,b=3.4;
+    float  c=5.1,d=3.2;
+    //<2F><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ǿ<EFBFBD><C7BF>ת<EFBFBD><D7AA>
+    cout<<"2, 3.2    <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<Max(double(2),3.2)<<endl;
+    cout<<"a, c    <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<Max(float(a),c)<<endl;
+    //<2F><>ʾָ<CABE><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    cout<<"'a', 3    <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<Max<int>('a',3)<<endl;
+    system("pause");
+}
+

practical_exercises/10_day_practice/day8/函数模板/重要.cpp

@@ -0,0 +1,43 @@
+//Eg9-1.cpp
+#include <iostream>
+//ע<><D7A2>һ<EFBFBD>㣬max<61><78>minʹ<6E>õ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>д<EFBFBD><D0B4>룬<EFBFBD><EBA3AC>Ҫ<EFBFBD>ı亯<C4B1><E4BAAF>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD><CAB9>std::cout<75><74>std::endl
+using namespace std;
+/*
+<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>class<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><EFBFBD><EFBFBD>class<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD>ͬ<EFBFBD>ġ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>class<EFBFBD><EFBFBD>ʾT<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD>int<EFBFBD><EFBFBD>float<EFBFBD><EFBFBD>char<EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>struct<EFBFBD><EFBFBD>enum<EFBFBD><EFBFBD>class<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
+*/
+template <class T>
+T Min(T a,T b) {
+	return (a<b)?a:b;
+}
+/*
+Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ؼ<EFBFBD><EFBFBD><EFBFBD>class<EFBFBD><EFBFBD><EFBFBD><EFBFBD>׼C++<2B><><EFBFBD><EFBFBD>?<3F><><EFBFBD><EFBFBD>typename<6D><65>Ϊģ<CEAA><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͹ؼ<CDB9><D8BC>֣<EFBFBD>ͬʱҲ֧<D2B2><D6A7>ʹ<EFBFBD><CAB9>class<73><73>
+<EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><EFBFBD>min<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>template <class T>д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>ȫ<EFBFBD>ȼ۵ģ<DBB5>
+*/
+template <typename T>
+T myMin(T a, T b){
+    return (a<b)?a:b;
+}
+
+/*
+ģ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жԺ<EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>εľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>ȷ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֻ<EFBFBD>ڵ<EFBFBD>1<EFBFBD>ν<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ڵ<EFBFBD>1<EFBFBD>ε<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+<EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>͵IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>1<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵ<EFBFBD>ģ<EFBFBD>庯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+*/
+int main(){
+    double a=2,b=3.4;
+    float  c=2.3,d=3.2;
+    cout<<"2<EFBFBD><EFBFBD>3    <20><><EFBFBD><EFBFBD>Сֵ<D0A1>ǣ<EFBFBD>"<<Min<int>(2,3)<<endl; //<2F><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+    cout<<"2<EFBFBD><EFBFBD>3.4  <20><><EFBFBD><EFBFBD>Сֵ<D0A1>ǣ<EFBFBD>"<<Min(a,b)<<endl;//<2F><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+    cout<<"'a'<27><>'b'	  <20><><EFBFBD><EFBFBD>Сֵ<D0A1>ǣ<EFBFBD>"<<Min('a','b')<<endl;
+    cout<<"2.3<EFBFBD><EFBFBD>3.2<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Сֵ<EFBFBD>ǣ<EFBFBD>"<<Min(c,d)<<endl;
+    cout<<"2.3<EFBFBD><EFBFBD>3.2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǣ<EFBFBD>"<<std::min(c,d)<<endl;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Сֵ<D0A1><D6B5><EFBFBD><EFBFBD>
+    cout<<"2.3<EFBFBD><EFBFBD>3.2<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Сֵ<EFBFBD>ǣ<EFBFBD>"<<myMin(c,d)<<endl;//<2F><><EFBFBD><EFBFBD>classΪtypename
+    // cout<<"2<><32>'a'    <20><><EFBFBD><EFBFBD>Сֵ<D0A1>ǣ<EFBFBD>"<<Min(2,'a')<<endl; //<2F><><EFBFBD><EFBFBD>,<2C><>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>޷<EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿴9-3-1.cpp
+    system("pause");
+    return 0;
+}
+
+

practical_exercises/10_day_practice/day8/类模板/模拟栈.cpp

@@ -0,0 +1,78 @@
+/*
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>Stack<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD>T<EFBFBD><EFBFBD>ʾջ<EFBFBD>д<EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD>MAXSIZE<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>Ĵ<EFBFBD>С<EFBFBD><EFBFBD>
+*/
+#include<iostream>
+using namespace std;
+
+template<class T, int MAXSIZE>
+class Stack{
+    private:
+        T elem[MAXSIZE];
+        int top;
+    public:
+        Stack(){top=0;};
+        void push(T e);
+        T pop();
+        bool empty(){
+            if (top<=-1)
+                return 1;
+            else
+                return 0;
+        }
+        void setEmpty(){
+            top=-1;
+        }
+        bool full(){
+            if (top>=MAXSIZE-1)
+            {
+                return 1;
+            }
+            else
+                return 0;
+        }
+};
+/*
+ԭ<EFBFBD>ͣ<EFBFBD>
+template <ģ<><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>> 
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><ģ<><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>::<3A><>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>){};
+*/
+template<class T, int MAXSIZE>
+void Stack<T,MAXSIZE>::push(T e){
+    if(full()){
+        cout<<"ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>";
+        return;
+    }
+    elem[++top]=e;
+}
+
+template<class T, int MAXSIZE>
+T Stack<T,MAXSIZE>::pop(){
+    if(empty()){
+        cout<<"ջ<EFBFBD>ѿգ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵ<EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>"<<endl;
+        return 0;
+    }
+	return elem[top--];
+}
+
+
+int main(int argc, char const *argv[])
+{
+    //<2F><>ģ<EFBFBD><C4A3>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
+    Stack<int,10>  iStack;      	
+    Stack<char,10>  cStack; 
+    iStack.setEmpty(); 
+    cStack.setEmpty();    	
+    cout<<"-------intStack----\n";
+    int i;
+    for(i=1;i<11;i++) 
+        iStack.push(i);
+    for(i=1;i<11;i++) cout<<iStack.pop()<<"\t";
+    cout<<"\n\n-------charStack----\n";
+    cStack.push('A');	cStack.push('B');
+    cStack.push('C'); 	cStack.push('D');
+    cStack.push('E');
+    for(i=1;i<6;i++)  cout<<cStack.pop()<<"\t";
+    cout<<endl;
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day8/类模板/类模板特化.cpp

@@ -0,0 +1,72 @@
+//<2F><><EFBFBD><EFBFBD>һͨ<D2BB><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>ܹ<EFBFBD>ֱ<EFBFBD>Ӵ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>Ԫ<EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>дӴ<D0B4><D3B4><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+#include<iostream>
+#include<cstring>
+using namespace std;
+const int Size=5;
+template<class T>
+class Array{
+    private:
+        T a[Size];
+    public:
+        Array(){
+            for(int i=0;i<Size;i++){
+                a[i]=0;
+            }
+        }
+        T &operator[](int i);
+        void Sort();
+};
+
+template<class T> T& Array<T>::operator[](int i){
+    if(i<0||i>Size-1){
+        cout<<"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>Խ<EFBFBD>磡"<<endl;
+        exit(1);
+    }
+    return a[i];
+}
+
+template<class T> void Array<T>::Sort(){
+    int p;
+    for(int i=0;i<Size-1;i++){
+        p=i;
+        for(int j=i;j<Size;j++){
+            if(a[p]<a[j])
+                p=j;
+        }
+        T t=a[p];
+        a[p]=a[i];
+        a[i]=t;
+    }
+}
+//template <> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><<3C>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>::<3A>ػ<EFBFBD><D8BB><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>){}
+template<> void Array<char *>::Sort(){
+    int p;
+    for(int i=0;i<Size-1;i++){
+        p=i;
+        for(int j=i+1;j<Size;j++)
+            if(strcmp(a[p],a[j])<0)
+                p=j;
+        char* t=a[p];
+        a[p]=a[i];
+        a[i]=t;
+    }
+}
+
+int main(){
+    Array<int> a1;
+    Array<char*>b1;
+    a1[0]=1;a1[1]=23;a1[2]=6;
+    a1[3]=3; a1[4]=9; 	
+    a1.Sort();
+    for(int i=0;i<5;i++) 
+    cout<<a1[i]<<"\t";
+    cout<<endl;	
+    b1[0]="x1";	b1[1]="ya";	b1[2]="ad";
+    b1[3]="be";	b1[4]="bc";	
+    b1.Sort();
+    for(int i=0;i<5;i++)
+    cout<<b1[i]<<"\t";
+    cout<<endl;	
+    system("pause");
+}

practical_exercises/10_day_practice/day9/readme.md

@@ -0,0 +1,26 @@
+# <20>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD>
+1.catch<63><68><EFBFBD><EFBFBD><EFBFBD>쳣ʱ<ECB3A3><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>Ĭ<EFBFBD><C4AC>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
+2.<2E><><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD>ķ<EFBFBD><C4B7><EFBFBD>
+- <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>κ<EFBFBD><CEBA>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3>κ<EFBFBD><CEBA>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD><EFBFBD>磺
+```c++
+int f(int,char);                 //<2F><><EFBFBD><EFBFBD>f<EFBFBD><66><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3>κ<EFBFBD><CEBA>쳣
+```
+- <20>ں<EFBFBD><DABA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>throw<6F><77><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3><EFBFBD><EFBFBD>쳣<EFBFBD><ECB3A3><EFBFBD>͡<EFBFBD><CDA1><EFBFBD><EFBFBD>磺
+```c++
+int g(int,char)  throw(int,char);  //ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD>int<6E><74>char<61>쳣<EFBFBD><ECB3A3>
+```
+- ָ<><D6B8>throw<6F><77><EFBFBD>Ʊ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD><EFBFBD>͵Ŀձ<C4BF><D5B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3>κ<EFBFBD><CEBA>쳣<EFBFBD><ECB3A3><EFBFBD>磺
+```c++
+int h(int,char) throw();//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3>κ<EFBFBD><CEBA>쳣
+```
+3.<2E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣
+<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>catch<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
+```c++
+catch(<28><>) {
+    <20><><EFBFBD><EFBFBD>                        //<2F>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+}
+```
+4.<2E>ٴ<EFBFBD><D9B4>׳<EFBFBD><D7B3>쳣
+<EFBFBD><EFBFBD><EFBFBD><EFBFBD>catch<EFBFBD><EFBFBD><EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD>ٴ<EFBFBD><EFBFBD>׳<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>쳣<EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD><EFBFBD><EFBFBD>ĵط<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴ<EFBFBD><EFBFBD>׳<EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٱ<EFBFBD>ͬһ<EFBFBD><EFBFBD>catch<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><EFBFBD>ⲿ<EFBFBD><EFBFBD>catch<EFBFBD>鴦<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>catch<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴ<EFBFBD><EFBFBD>׳<EFBFBD>ͬһ<EFBFBD>쳣<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>catch<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>κβ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>throw<EFBFBD><EFBFBD><EFBFBD>伴<EFBFBD>ɡ<EFBFBD>
+5.<2E>쳣<EFBFBD><ECB3A3>Ƕ<EFBFBD>׵<EFBFBD><D7B5><EFBFBD>
+try<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>ף<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>try<EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD>԰<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>try<EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>׿<EFBFBD><EFBFBD><EFBFBD><EFBFBD>γ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

practical_exercises/10_day_practice/day9/异常例子/1.cpp

@@ -0,0 +1,19 @@
+//Eg10-1.cpp
+#include<iostream>
+using namespace std;
+int main(){
+    cout<<"1--befroe try block..."<<endl;
+    try{
+        cout<<"2--Inside try block..."<<endl;
+        throw 10;
+        cout<<"3--After throw ...."<<endl;
+    }
+    catch(int i) {
+	    cout<<"4--In catch block1 ... exception..errcode  is.."<<i<<endl;
+    }
+    catch(char * s) {
+        cout<<"5--In catch block2 ... exception..errcode is.."<<s<<endl;
+    }
+    cout<<"6--After Catch...";
+    system("pause");
+}

practical_exercises/10_day_practice/day9/异常例子/10.cpp

@@ -0,0 +1,42 @@
+//Eg10-11.cpp
+#include <iostream>
+using namespace std;
+const int MAX=3;
+class Full{
+    int a;
+    public:
+        Full(int i):a(i){}
+        int getValue(){return a;}
+};
+class Empty{};
+class Stack{
+    private:
+        int s[MAX];
+        int top;
+    public:
+        Stack(){top=-1;}
+        void push(int a){
+            if(top>=MAX-1)  
+                throw Full(a);			
+            s[++top]=a;
+        }
+        int pop(){
+            if(top<0)
+                throw Empty();
+            return s[top--];
+        }
+};
+int main(){
+    Stack s;
+    try{
+        s.push(10);  
+        s.push(20);
+        s.push(30);  
+        s.push(40);
+    }
+    catch(Full e){	
+        cout<<"Exception: Stack Full..."<<endl;
+        cout<<"The value not push in stack:"<<e.getValue()<<endl; 
+    }
+    system("pause");
+}

practical_exercises/10_day_practice/day9/异常例子/2.cpp

@@ -0,0 +1,17 @@
+//Eg10-2.cpp
+#include<iostream>
+using namespace std;
+int main(){
+    cout<<"1--befroe try block..."<<endl;
+    try{
+        cout<<"2--Inside try block..."<<endl;
+        throw 10;                        
+        cout<<"3--After throw ...."<<endl;
+    }
+    catch(double i) { 		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>10.1<EFBFBD><EFBFBD>ͬ
+        cout<<"4--In catch block1 .. an int type is.."<<i<<endl;
+    }
+    cout<<"5--After Catch...";
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day9/异常例子/3.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+void temperature(int t)
+{
+    try{
+        if(t==100) throw "<EFBFBD>е㣡";
+        else if(t==0) throw "<EFBFBD><EFBFBD><EFBFBD>㣡";
+        else cout<<"the temperature is OK..."<<endl;
+    }
+    catch(int x){cout<<"temperatore="<<x<<endl;}
+    catch(char const*s){cout<<s<<endl;}
+}
+int main(){
+    temperature(0);						//L1
+    temperature(10);						//L2
+    temperature(100);						//L3
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day9/异常例子/4.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+void temperature(int t)
+{
+    
+    if(t==100) throw "<EFBFBD>е㣡";
+    else if(t==0) throw "<EFBFBD><EFBFBD><EFBFBD>㣡";
+    else{cout<<"temperatore="<<t<<endl;}
+   
+}
+int main(){
+    try{
+        temperature(0);						//L1
+        temperature(10);						//L2
+        temperature(100);						//L3
+    }
+    catch(char const*s){cout<<s<<endl;}
+    system("pause");
+    return 0;
+}

practical_exercises/10_day_practice/day9/异常例子/5.cpp

@@ -0,0 +1,19 @@
+//Eg10-5.cpp
+#include<iostream>
+using namespace std;
+
+void handler(int n)throw(int,char,double){
+    if(n==1) throw n;
+    if(n==2) throw 'x';
+    if(n==3) throw 1.1;
+}
+int main(){
+    cout<<"Before handler..."<<endl;
+    try{
+        handler(1);
+    }
+    catch(int i){ cout<<"catch an integer..."<<endl;}
+    catch(char c){cout<<"catch an char..."<<endl;}
+    catch(double d){cout<<"catch an double..."<<endl;}
+    system("pause");
+}

practical_exercises/10_day_practice/day9/异常例子/6.cpp

@@ -0,0 +1,18 @@
+//Eg10-6.cpp
+#include<iostream>
+using namespace std;
+void Errhandler(int n)throw(){
+    try{
+        if(n==1) throw n;
+        if(n==2) throw "dx";
+        if(n==3) throw 1.1;
+    }
+    catch(...){cout<<"catch an exception..."<<endl;}
+}
+int main(){
+    Errhandler(1);
+    Errhandler(2);
+    Errhandler(3);
+    system("pause");
+    return 0;
+} 

practical_exercises/10_day_practice/day9/异常例子/7-1.cpp

@@ -0,0 +1,33 @@
+//Eg10-9.cpp
+#include<iostream>
+using namespace std;
+class A{
+    int a;
+public:
+    A(int i=0):a(i){}
+    ~A(){cout<<"in A destructor..."<<endl;}
+};
+class B{
+    A obj[3];
+    double *pb[10];
+    public:
+        B(int k){
+            cout<<"int B constructor..."<<endl;
+            for (int i=0;i<10;i++){
+                pb[i]=new double[20000000];
+                if(pb[i]==0)
+                    throw i;
+                else 
+                    cout<<"Allocated 20000000 doubles in pb["<<i<<"]"<<endl;
+            }
+        }
+};
+int main(){
+    try{
+        B b(2);
+    }
+    catch(int e){
+        cout<<"catch an exception when allocated pb["<<e<<"]"<<endl;   
+    }
+    system("pause");
+}

practical_exercises/10_day_practice/day9/异常例子/7.cpp

@@ -0,0 +1,24 @@
+//Eg10-7.cpp
+#include<iostream>
+using namespace std;
+//<2F>ڲ<EFBFBD><DAB2>ٴ<EFBFBD>throw<6F>쳣<EFBFBD><ECB3A3>ʱ<EFBFBD>򣬺<EFBFBD><F2A3ACBA><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>throw()
+void Errhandler(int n)
+{
+    try{
+        if(n==1) throw n;
+        cout<<"all is ok..."<<endl;
+    }
+    catch(int n){
+        cout<<"catch an int exception inside..."<<n<<endl;
+        throw n;                                     //<2F>ٴ<EFBFBD><D9B4>׳<EFBFBD><D7B3><EFBFBD>catch<63><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣
+    }
+}
+int main(){
+    try{
+        Errhandler(1); 
+    }
+    catch(int x){ cout<<"catch int an exception in main..."<<x<<endl; }
+    cout<<"....End..."<<endl;
+    system("pause");
+    return 0;
+}