C++设计模式从0进击-3-工厂模式

//工厂模式
class LeiFeng
{
public:
	virtual void Sweep()
	{
		cout << "雷锋扫地" << endl;
	}
};

//学雷锋的大学生
class Student: public LeiFeng
{
public:
	virtual void Sweep()
	{
		cout << "大学生扫地" << endl;
	}
};

//学雷锋的志愿者
class Volenter: public LeiFeng
{
public: 
	virtual void Sweep()
	{
		cout << "志愿者扫地" << endl;
	}
};

//工厂基类Creator
class LeiFengFactory{
public: 
	virtual LeiFeng * CreateLeiFeng()
	{
		return new LeiFeng();
	}
};

//工厂具体类
class StuendFactory: public LeiFengFactory
{
public:
	virtual LeiFeng * CreateLeiFeng()
	{
		return new Student();
	}
};

class VolenterFactory: public LeiFengFactory
{
public:
	virtual LeiFeng * CreateLeiFeng()
	{
		return new Volenter();
	}
};

int _tmain(int argc, _TCHAR(argv[]))
{
	LeiFengFactory * factory = new LeiFengFactory();
	LeiFeng * s = factory->CreateLeiFeng();
	s->Sweep();
	delete s;
	delete factory;
	return 0;
	return 0;
}