class Base{public:    Base()    {        Fuction();    }    virtual void Fuction()    {        cout << " construct Base::Fuction" << endl;    }    ~Base()    {        desFuction();    }    virtual void desFuction()    {        cout << " destruct Base::Fuction" << endl;    }};class A : public Base{public:    A()    {        Fuction();    }    ~A()    {        desFuction();    }    virtual void Fuction()    {        cout << " construct A::Fuction" << endl;    }    virtual void desFuction()    {        cout << " destructr A::Fuction" << endl;    }};int test(){    A a;                        return 0;}

输出结果：

cout << " construct Base::Fuction" << endl;

cout << " construct A::Fuction" << endl;

cout << " destructr A::Fuction" << endl;

cout << " destruct Base::Fuction" << endl;