flybehavior.h

head first 设计模式中的策略模式的C++实现代码

class FlyBehavior
{
public:
	virtual void fly() = 0;
};

class FlyWithWings:public FlyBehavior
{
public:
	void fly()
	{
		cout<<"I'm flying!"<<endl;
	}
};

class FlyNoWay:public FlyBehavior
{
public:
	void fly()
	{
		cout<<"I cannot fly."<<endl;
	}
};

class FlyRocketPowered:public FlyBehavior
{
public:
	void fly()
	{
		cout<<"I'm flying with a rocket!"<<endl;
	}
};