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Light-City
2020-04-06 00:57:02 +08:00
parent f97c156cc4
commit a4d828bb4c
120 changed files with 4413 additions and 0 deletions
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24
practical_exercises/10_day_practice/day5/继承访问权限/readme.md Normal file
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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>

36
practical_exercises/10_day_practice/day5/继承访问权限/保护成员.cpp Normal file
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/*
<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;
}

37
practical_exercises/10_day_practice/day5/继承访问权限/保护继承.cpp Normal file
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/*
<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>
*/

30
practical_exercises/10_day_practice/day5/继承访问权限/公有继承.cpp Normal file
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#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");
}

26
practical_exercises/10_day_practice/day5/继承访问权限/私有继承.cpp Normal file
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#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");
}