Cpp深入：多重继承

Worker.h

#ifndef _WORKER_H_#define _WORKER_H_#include <iostream>class Worker{// 基类public:Worker();// 这里需要设置成虚函数virtual ~Worker();};class Waiter : virtual public Worker{public:Waiter();virtual ~Waiter(); void Show();};class Singer : virtual public Worker{public:Singer();virtual ~Singer();void Show();};class SingerWaiter : public Waiter, public Singer{public:SingerWaiter();~SingerWaiter();void Show();};#endif 

 

Worker.cpp

#include <iostream>#include "Worker.h"using std::cout;using std::endl;///////////////////////////////////worker///////////////////////////////////////Worker::Worker(){cout << "in worker class : constructor" << endl;}Worker::~Worker(){cout << "in worker class : destructor" << endl;}/////////////////////////////////////waiter/////////////////////////////////////Waiter::Waiter(){cout << "in waiter class : constructor" << endl;}Waiter::~Waiter(){cout << "in waiter class : destructor" << endl;}void Waiter::Show(){cout << "in waiter class : show" << endl;}////////////////////////////////////////singer//////////////////////////////////Singer::Singer(){cout << "in singer class : constructor" << endl;}Singer::~Singer(){cout << "in singer class : destructor" << endl;}void Singer::Show(){cout << "in singer class : show" << endl;}///////////////////////////////////singer worker///////////////////////////////////////SingerWaiter::SingerWaiter(){cout << "in singer waiter class : constructor" << endl;}SingerWaiter::~SingerWaiter(){cout << "in singer waiter class : destructor" << endl;}void SingerWaiter::Show(){// 调用singer的showSinger::Show();// 调用waiter的showWaiter::Show();cout << "in singer waiter class : show" << endl;} 

 

main.cpp

// 多重继承#include <iostream>#include "Worker.h"using namespace std;int main(){SingerWaiter sw;sw.Show();return 0;}