a2.cpp

c++模板小实验

#include<iostream.h> 
class vehicle
{public:
 vehicle()
 {
  cout<<"构造了一个vehicle类"<<endl;}
  ~vehicle()
  {cout<<"析构了一个vehicle类"<<endl;}
  virtual void run()
  {cout<<"vehicle开始运行"<<endl;}
  virtual void stop()
  {cout<<"vehicle停止运行"<<endl;}
};
class bicycle : public virtual vehicle
{public:
  
  bicycle()
  {cout<<"构造了一个vehicle类的派生类bicycle"<<endl;}
  ~bicycle()
  {cout<<"析构了一个vehicle类的派生类bicycle"<<endl;}
  virtual void run()
  {cout<<"bicycle开始运行"<<endl;}
  virtual void stop()
  {cout<<"bicycle停止运行"<<endl;}
};
class motorcar : public virtual vehicle
{public:
  int setnumber;
  motorcar()
  {
  cout<<"构造了一个vehicle类的派生类motorcar"<<endl;}
  ~motorcar()
  {cout<<"析构了一个vehicle类的派生类motorcar"<<endl;}
  virtual void run()
  {cout<<"motorcar开始运行"<<endl;}
  virtual void stop()
  {cout<<"motorcar停止运行"<<endl;}
};
class motorcycle:public bicycle,public motorcar
{public:
 motorcycle()
 {cout<<"构造了派生类motorcycle"<<endl;}
 ~motorcycle()
 {cout<<"析构了派生类motorcycle"<<endl;}
  void run()
  {cout<<"motorcycle开始运行"<<endl;}
  void stop()
  {cout<<"motorcycle停止运行"<<endl;}
};
void main()
{ vehicle v,*p;
  p=&v;
  p->run();
  p->stop();
  bicycle b;
  p=&b;
  p->run();
  p->stop();
  motorcar m;
  p=&m;
  p->run();
  p->stop();
  motorcycle c;
  p=&c;
  p->run();
  p->stop();
}