用C++跟你聊聊“命令模式”，跟我聊就够了

#include<iostream>
#include<list>
using namespace std;

//大忙人类
class BusyMan {
public:
	void Dinner() { cout << "晚餐" << endl; }
	void Game() { cout << "打游戏" << endl; }
};


//抽象命令类
class AbsCommand {
protected :
	BusyMan *man;
	string state;	//命令参数
public:
	AbsCommand(BusyMan* man) { this->man = man; }

	string getState() { return state; }
	//执行命令
	virtual void excuteCommand() = 0;
};

//吃晚饭预约
class DinnerCommand :public AbsCommand {
public:
	DinnerCommand(BusyMan* man) :AbsCommand(man) { this->state = "晚饭"; };
	void excuteCommand() {
		man->Dinner();
	}
};

//打游戏预约
class GameCommand :public AbsCommand {
public:
	GameCommand(BusyMan* man) :AbsCommand(man) { this->state = "打游戏"; };
	void excuteCommand() {
		man->Game();
	}
};

//秘书类
class selary {
private:
	list<AbsCommand*> AC;

public:
	//安排预约
	void SetOrder(AbsCommand* abs) {
		if (abs->getState() == "晚饭")
			cout << "没空" << endl;
		else
		{
			AC.push_back(abs);
			cout << "预约成功，请于XX：XX准时上线快乐双排" << endl;

			//这里可以再加个写入配置文件的
		}
	}

	//解约
	void cancelOrder(AbsCommand* abs){
		AC.remove(abs);
		cout << "解约成功" << endl;
	}

	void notify(){
		list<AbsCommand*>::iterator it = AC.begin();
		while (it != AC.end())
		{
			(*it)->excuteCommand();
			it++;
		}
		AC.clear();
	}
};


int main()
{
	BusyMan* man = new BusyMan();

	AbsCommand* d = new DinnerCommand(man);
	AbsCommand* g1 = new GameCommand(man);
	AbsCommand* g2 = new GameCommand(man);

	selary* s = new selary();

	s->SetOrder(d);
	s->SetOrder(g1);
	s->notify();

	s->SetOrder(g1);
	s->SetOrder(g2);
	s->cancelOrder(g1);
	s->notify();
	return 0;
}