#include?“stdafx.h“

#include?
using?namespace?std;

#define?SAFE_DELETE（p）?if?（p）?{?delete?p;?p?=?NULL;}

class?CSubject
{
public:
	CSubject（）?{};
	virtual?~CSubject（）?{}

	virtual?void?Request（）?=?0;
};

class?CRealSubject?:?public?CSubject
{
public:
	CRealSubject（）?{}
	~CRealSubject（）?{}

	void?Request（）
	{
		cout?<	}
};

class?CProxy?:?public?CSubject