C++：设计模式之适配器模式（例子）

// 设计模式测试.cpp : 定义控制台应用程序的入口点。
// 适配器模式

#include "stdafx.h"
#include 
#include 
#include 
#include 

using namespace std;
/*********************适配器模式火鸡伪装鸭子示例*************************************/
//鸭子基类
class Duck {
public:
	virtual void quack() = 0;
	virtual void fly() = 0;
};
class MallardDuck :public Duck {
public:
	void quack() {
		cout << "Quack" << endl;
	}
	void fly() {
		cout << "I am Flying" << endl;
	}
};
//火鸡基类
class Turkey {
public:
	virtual void gobble()=0;
	virtual void fly()=0;
};
class WildTurkey : public Turkey {
public:
	void gobble() {
		cout << "Gobble gobble" << endl;
	}
	void fly() {
		cout << "I am flying a short distance" << endl;
	}
};
//适配器
class TurkeyAdapter :public Duck {
	Turkey *turkey;
public:
	TurkeyAdapter(Turkey *turkey) {
		this->turkey = turkey;
	}
	void quack() {
		turkey->gobble();
	}
	void fly() {
		for (size_t i = 0; i < 5; i++)
		{
			turkey->fly();
		}
	}
};
//主函数
int main()
{
	MallardDuck *duck = new MallardDuck();

	WildTurkey *turkey = new WildTurkey();
	Duck *turkeyAdapter = new TurkeyAdapter(turkey);

	cout << "The Turkey says ..." << endl;
	turkey->gobble();
	turkey->fly();

	cout << "The Duck says ..." << endl;
	duck->quack();
	duck->fly();

	cout << "The turkeyAdapter says ..." << endl;
	turkeyAdapter->quack();
	turkeyAdapter->fly();

	system("Pause");
	return 0;
}