Prototype模式

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Prototype模式通过复制原型（Prototype）而获得新对象创建的功能，这里Prototype本身就是“对象工厂”

prototype.h：

#ifndef _PROTOTYPE_H_#define _PROTOTYPE_H_class Prototype{public:virtual ~Prototype();virtual Prototype* Clone() const = 0;protected:Prototype();private:};class ConcretePrototype:public Prototype{public:ConcretePrototype();ConcretePrototype(const ConcretePrototype& cp);~ConcretePrototype();Prototype* Clone() const;protected:private:};#endif //~_PROTOTYPE_H_

prototype.cpp：

#include "prototype.h"#include <iostream>using namespace std;Prototype::Prototype(){}Prototype::~Prototype(){}Prototype* Prototype::Clone() const{return 0;}ConcretePrototype::ConcretePrototype(){}ConcretePrototype::~ConcretePrototype(){}ConcretePrototype::ConcretePrototype(const ConcretePrototype& cp){cout<<"ConcretePrototype copy ..."<<endl;}Prototype* ConcretePrototype::Clone() const{return new ConcretePrototype(*this);}

main.cpp：

#include "prototype.h"#include <iostream>using namespace std;int main(){Prototype* p = new ConcretePrototype();Prototype* p1 = p->Clone();return 1;}

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