纯虚函数练习-饮品的制作和电脑组装

纯虚函数之饮品制作，三种方式实现函数的调用：
代码实现：

#include
#include
#include 
#include
#include
using namespace std;
using namespace cv;

class AbstructMakedrink {
public:
	virtual void Boil() = 0;
	virtual void Brew() = 0;
	virtual void PutIncup() = 0;
	virtual void Putsomething() = 0;
	void Makedrinking() {
		Boil();
		Brew();
		PutIncup();
		Putsomething();
	}
};

class MakeCoffe:public AbstructMakedrink {
public:
	 void Boil() {
		 cout << "煮农夫山泉" << endl;
	}
	 void Brew() {
		 cout << "冲泡咖啡" << endl;
	}
	 void PutIncup() {
		 cout << "倒入瓷器杯中" << endl;
	}
	 void Putsomething() {
		 cout << "加入糖和牛奶" << endl;
	}
};

class MakeTea :public AbstructMakedrink {
public:
	void Boil() {
		cout << "煮矿泉水" << endl;
	}
	void Brew() {
		cout << "冲泡茶叶" << endl;
	}
	void PutIncup() {
		cout << "倒入玻璃杯中" << endl;
	}
	void Putsomething() {
		cout << "加入柠檬" << endl;
	}
};
//传入指针的第一种方式实现饮品制作
//void Dowork(AbstructMakedrink* drink) {
//	drink->Makedrinking();
//	delete drink;
//}
//使用引用的方式制作饮品
void Dowork(AbstructMakedrink&drink) {
	drink.Makedrinking();

}
void test02() {
	//传入指针的第一种方式实现饮品制作
	

	//使用堆区开辟指针的第二种方式实现饮品制作
	//AbstructMakedrink* drink = new MakeCoffe;
	//drink->Makedrinking();
	//delete drink;
	//drink = new MakeTea;
	//drink->Makedrinking();
	//delete drink;

	//使用引用的方式制作饮品
	MakeCoffe Coffe;
	Dowork(Coffe);
	MakeTea tea;
	Dowork(tea);
}
int main() {
	test02();
	system("pause");
	return 0;
}

2.电脑组装：

#include
#include
#include 
#include
#include
using namespace std;
using namespace cv;

class Cpu {
public:
	virtual void Caculate() = 0;
};
class VideoCard {
public:
	virtual void Display() = 0;
};
class Mermeoy {
public:
	virtual void Strorage() = 0;
};
class IntelCpu :public Cpu {
public:
	virtual void Caculate() {
		cout << "Intel的Cpu开始计算了" << endl;
	}
};
class IntelVideoCard :public VideoCard {
public:
	virtual void Display() {
		cout << "Intel的显卡开始显示了" << endl;
	}
};
class IntelMermeoy :public Mermeoy {
public:
	virtual void Strorage() {
		cout << "Intel的内存开始存储了" << endl;
	}
};
class HuiPCpu :public Cpu {
public:
	virtual void Caculate() {
		cout << "HuiP的Cpu开始计算了" << endl;
	}
};
class HuiPVideoCard :public VideoCard {
public:
	virtual void Display() {
		cout << "HuiP的显卡开始显示了" << endl;
	}
};
class HuiPMermeoy :public Mermeoy {
public:
	virtual void Strorage() {
			cout << "HuiP的内存开始存储了" << endl;
	}
};

class Computer {
public:
	Computer(Cpu*cpu, VideoCard*vd, Mermeoy*mem) {
		m_cpu = cpu;
		m_vd = vd;
		m_mem = mem;
	}
	void Dowork() {
		m_cpu->Caculate();
		m_mem->Strorage();
		m_vd->Display();
	}
	~Computer() {
		if (m_cpu != NULL) {
			delete m_cpu;
			m_cpu = NULL;
		}
		if (m_vd != NULL) {
			delete m_vd;
			m_vd = NULL;
		}
		if (m_mem != NULL) {
			delete m_mem;
			m_mem = NULL;
		}

	}
private :
	Cpu* m_cpu;//创建的类指针，并非实例化对象！
	VideoCard* m_vd;
	Mermeoy* m_mem;
};
void test02() {
	Cpu* pu = new IntelCpu;
	VideoCard* vd = new IntelVideoCard;
	Mermeoy* me = new HuiPMermeoy;
	//第一种电脑组装方法
	Computer cp1(pu,vd,me);
	cp1.Dowork();
	delete pu;
	delete vd;
	delete me;
	//第二、第三种电脑组装方法
	//Computer* compu2 = new Computer(new IntelCpu,new HuiPVideoCard,new IntelMermeoy);
	Cpu* pu3 = new IntelCpu;
	VideoCard* vd3 = new IntelVideoCard;
	Mermeoy* me3 = new HuiPMermeoy;
	Computer* compu3 = new Computer(pu3,vd3,me3);//传指针的构造函数，有new，表示在堆区开辟空间返回指针指向构造函数。
	compu3->Dowork();
	delete compu3;
}
int main() {
	test02();
	system("pause");
	return 0;
}