地道联盟臭蛋军

class A
{
private:
	LPSTR sa;
public:
	A(){sa="aaa";}
	void afunc()
	{
		MessageBox(NULL,sa,"this is A::afunc",MB_OK);
	}
};

/*B继承A*/
class B:public A
{
private:
	LPSTR sb;
public:
	B():A(){sb="bbb";}
	void bfunc()
	{
		MessageBox(NULL,sb,"this is B::bfunc",MB_OK);
	}
};

/*C继承A*/
class C:public A
{
private:
	LPSTR sc;
public:
	C():A(){sc="ccc";}
	void cfunc()
	{
		MessageBox(NULL,sc,"this is C::cfunc",MB_OK);
	}
};



typedef void (A::*LPDELEGATEAFUNC)(void);

/*WinMain*/
int WINAPI WinMain(HINSTANCE hInst,HINSTANCE,LPSTR CmdLine,int CmdShow)
{

	/*实例化B和C*/
	B* b=new B();
	C* c=new C();
	/*A成员函数指针指向B的成员函数*/
	LPDELEGATEAFUNC pf=(LPDELEGATEAFUNC)B::bfunc;
	/*用C的实例调用该函数*/
	(c->*pf)();

}/*WinMain*/