C++多态的实例举例与应用

#include
using namespace std;

//多态案例2 制作饮品
class AbstractDrinking
{
public:
	virtual void Boil() = 0;
	virtual void Brew() = 0;
	virtual void PourinCup() = 0;
	virtual void Putsomething() = 0;
	//规则流程
	void MakeDrink()
	{
		Boil();
		Brew();
		PourinCup();
		Putsomething();
	}
};
class Coffee :public AbstractDrinking
{
	virtual void Boil()
	{
		cout << "煮农夫山泉" << endl;
	}
	virtual void Brew()
	{
		cout << "冲泡咖啡" << endl;

	}
	virtual void PourinCup()
	{
		cout << "将咖啡导入杯中" << endl;
	}
	virtual void Putsomething()
	{
		cout << "加入牛奶" << endl;
	}
};

class Tea :public AbstractDrinking
{
	virtual void Boil()
	{
		cout << "煮茶水" << endl;
	}
	virtual void Brew()
	{
		cout << "冲茶叶" << endl;

	}
	virtual void PourinCup()
	{
		cout << "将茶叶导入咖啡" << endl;
	}
	virtual void Putsomething()
	{
		cout << "加入枸杞" << endl;
	}
};

//业务函数
void Dowork(AbstractDrinking* drink)
{
	drink->MakeDrink();
	delete drink;
}

void test01()
{
	Dowork(new Coffee);  //把咖啡类当作一个心的指针传入
	cout << "=====" << endl;
	Dowork(new Tea);
}
int main()
{
	test01();
	return 0;
}