mfc调用子类的虚函数//是基类new了一个子类?调用多个子类岂不是要new多个子类?
#include <iostream>
using namespace std;
class base{
public:
virtual void fun()
{
cout<<"1"<<endl;
}
};
class sub:public base{
public:
void fun()
{
cout<<"2"<<endl;
}
};
class sub2:public sub{
public:
void fun()
{
cout<<"3"<<endl;
}
};
