update
This commit is contained in:
Light-City
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#include <iostream>
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using namespace std;
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class B{
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public:
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void f(){ g(); }
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virtual void g(){ cout << "B::g"; }
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};
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class D : public B{
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public:
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void g(){ cout << "D::g\n"; }
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};
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int main(){
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D d;
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d.f();
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system("pause");
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return 0;
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}
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92
practical_exercises/10_day_practice/day6/虚函数/编程实例.cpp
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92
practical_exercises/10_day_practice/day6/虚函数/编程实例.cpp
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/*
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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>
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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>
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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>
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*/
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#include <iostream>
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#include <string>
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using namespace std;
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class Employee{
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public:
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Employee(string Name ,string id){ name=Name; Id=id; }
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string getName(){ return name; } //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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string getID(){ return Id; } //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>
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float getSalary(){ return 0.0; } //<2F><><EFBFBD><EFBFBD>нˮ
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void print(){ //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>: "<<name<<"\t\t <20><><EFBFBD><EFBFBD>: "<<Id<<endl;
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}
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private:
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string name;
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string Id;
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};
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class Manager:public Employee{
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public:
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Manager(string Name,string id,int week):Employee(Name,id){
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WeeklySalary=week*1000;
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}
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float getSalary(){ return WeeklySalary; } //<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
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void print(){ //<2F><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>н
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
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<<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
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}
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private:
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float WeeklySalary; //<2F><>н
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};
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class SaleWorker:public Employee{
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public:
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SaleWorker(string name,string id,int profit,int x):Employee(name,id){
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workerMoney=baseMoney+x*0.05*profit;
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}
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float getSalary(){
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return workerMoney;
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}
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void print(){
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
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<<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
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}
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private:
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float baseMoney=800.0;
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float workerMoney;
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};
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class HourWorker:public Employee{
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public:
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HourWorker(string name,string id,int h):Employee(name,id){
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TotalMoney=h*hourMoney;
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}
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float getSalary(){
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return TotalMoney;
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}
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void print(){
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cout<<"Сʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getID()
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<<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
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}
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private:
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float hourMoney=100.0;
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float TotalMoney;
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};
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int main(){
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>빤<EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD>";
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int week;
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cin>>week;
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Manager m("С<EFBFBD><EFBFBD>","11111111",week);
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m.print();
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
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int profit;
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cin>>profit;
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
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int x;
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cin>>x;
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SaleWorker s("С<EFBFBD><EFBFBD>","222222",profit,x);
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s.print();
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>빤<EFBFBD><EFBFBD>Сʱ<EFBFBD><EFBFBD>";
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int hour;
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cin>>hour;
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HourWorker h("С<EFBFBD><EFBFBD>","333333",hour);
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h.print();
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system("pause");
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return 0;
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}
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66
practical_exercises/10_day_practice/day6/虚函数/虚函数例子.cpp
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66
practical_exercises/10_day_practice/day6/虚函数/虚函数例子.cpp
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@@ -0,0 +1,66 @@
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//Eg7-1.cpp
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//<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>
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//<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
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#include<iostream>
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#include<string>
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using namespace std;
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class Employee{
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public:
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Employee(string name, string id);
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string getName();
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string getId();
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float getSalary();
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virtual void print();
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private:
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string Name;
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string Id;
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};
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Employee::Employee(string name,string id){
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Name=name;
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Id=id;
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}
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string Employee::getName(){
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return Name;
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}
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string Employee::getId(){
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return Id;
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}
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float Employee::getSalary(){
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return 0.0;
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}
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void Employee::print(){
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<Name<<"\t"<<"<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>"<<Id<<endl;
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}
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class Manager:public Employee{
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public:
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Manager(string name,string id,float s=0.0):Employee(name,id){
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weeklySalary=s;
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}
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void setSalary(float s) { weeklySalary=s; } //<2F><><EFBFBD>þ<EFBFBD><C3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
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float getSalary(){ return weeklySalary; } //<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н
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void print(){ //<2F><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>н
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cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<getName()<<"\t\t <20><><EFBFBD><EFBFBD>: "<<getId()<<"\t\t <20>ܹ<EFBFBD><DCB9><EFBFBD>: "<<getSalary()<<endl;
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}
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private:
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float weeklySalary; //<2F><>н
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};
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/*
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<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>
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<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>
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*/
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int main(){
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Employee e("С<EFBFBD><EFBFBD>","NO0001"),*pM;
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Manager m("С<EFBFBD><EFBFBD>","NO0002",128);
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m.print();
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pM=&m;
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pM->print();
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Employee &rM=m;
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rM.print();
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system("pause");
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return 0;
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}
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//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
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30
practical_exercises/10_day_practice/day6/虚函数/虚函数特性.cpp
Normal file
30
practical_exercises/10_day_practice/day6/虚函数/虚函数特性.cpp
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@@ -0,0 +1,30 @@
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#include <iostream>
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#include<string>
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using namespace std;
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class A {
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public:
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void f(int i){cout<<"<EFBFBD><EFBFBD>A"<<endl;};
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};
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class B: public A {
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public:
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virtual void f(int i){cout<<"<EFBFBD><EFBFBD>B"<<endl;}
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};
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class C: public B {
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public:
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void f(int i){cout<<"<EFBFBD><EFBFBD>C"<<endl;}
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};
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//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>
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class D: public C{
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public:
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void f (int){cout<<"<EFBFBD><EFBFBD>D"<<endl;}
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};
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int main(){
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A *pA,a;
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B *pB, b; C c; D d;
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pA=&a; pA->f(1); //<2F><><EFBFBD><EFBFBD>A::f
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pB=&b; pB->f(1); //<2F><><EFBFBD><EFBFBD>A::f
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pB=&c; pB->f(1); //<2F><><EFBFBD><EFBFBD>A::f
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pB=&d; pB->f(1); //<2F><><EFBFBD><EFBFBD>A::f
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system("pause");
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return 0;
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}
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22
practical_exercises/10_day_practice/day6/虚函数/虚析构函数.cpp
Normal file
22
practical_exercises/10_day_practice/day6/虚函数/虚析构函数.cpp
Normal file
@@ -0,0 +1,22 @@
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#include <iostream>
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using namespace std;
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class A{
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public:
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virtual ~A(){ cout<<"call A::~A()"<<endl; }
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};
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class B:public A{
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char *buf;
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public:
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B(int i){buf=new char[i];}
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~B(){
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delete [] buf;
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cout<<"call B::~()"<<endl;
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}
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};
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int main(){
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A* a=new B(10);
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delete a;
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system("pause");
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return 0;
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}
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Block a user