virtual.cpp

构造函数和析构函数的多种用法

#include <iostream.h>
class Base
{
    public:    
    //virtual ~Base() { cout<< "~Base" << endl ; }
     ~Base() { cout<< "~Base" << endl ; }
};
class Derived : public Base
{
    public:    
    //virtual ~Derived() { cout<< "~Derived" << endl ; }
     ~Derived() { cout<< "~Derived" << endl ; }
};