tian2.cpp

c++模板小实验

#include<iostream.h>
class vehicle
{public:
  virtual void run(){cout<<"开始运行vehicle！"<<endl;}
  virtual void stop(){cout<<"停止运行vehicle！"<<endl;}
};
class bicycle:virtual public vehicle
{public:
 void run(){cout<<"开始运行bicycle！"<<endl;}
 void stop(){cout<<"停止运行bicycle！"<<endl;}
};
class motorcar:virtual public vehicle
{public:
 void run(){cout<<"开始运行motorcar！"<<endl;}
 void stop(){cout<<"停止运行motorcar！"<<endl;}
};
class motorcycle:public bicycle,public motorcar
{public:
void run(){cout<<"开始运行motorcycle！"<<endl;}
void stop(){cout<<"停止运行motorcycle！"<<endl;}
};
void main()
{
 //定义vehicle，bicycle,vmotorcar，motorcycle对象，并调用其run（），stop（）函数
 //vehicle v1;
 //bicycle b1;
 //motorcar m1;
 //motorcycle mb1;
 //v1.run();
 //v1.stop();
 //b1.run();
 //b1.stop();
 //m1.run();
 //m1.stop();
 //mb1.run();
 //mb1.stop();

 //run，stop定义为虚函数，用vehicle类型指针调用几个对象的成员函数
 vehicle v1,*p;
 bicycle b1;
 motorcar m1;
 motorcycle mb1;
 p=&v1;
 p->run();
 p->stop();
 p=&b1;
 p->run();
 p->stop();
 p=&m1;
 p->run();
 p->stop();
 p=&mb1;
 p->run();
 p->stop();
}