main().cpp

设计模式之Memento

//main.cpp
#include "Memento.h"
#include <iostream> 
using namespace std;

int main(int argc,char* argv[]) 
{ 
	Originator* o = new Originator();
	o->SetState("old"); //备忘前状态
	o->PrintState();
	Memento* m = o->CreateMemento(); //将状态备忘
	o->SetState("new"); //修改状态
	o->PrintState();
	o->RestoreToMemento(m); //恢复修改前状态
	o->PrintState();
	return 0;
}