Prototype Pattern（原型模式）

/*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.cpp*/
#include "Prototype.h"
#include <iostream>

Prototype::Prototype()
{
}

Prototype::~Prototype()
{
}

ConcretePrototype::ConcretePrototype()
{
}

ConcretePrototype::~ConcretePrototype()
{
}

ConcretePrototype::ConcretePrototype(const ConcretePrototype &cp)
{
    std::cout<<"ConcretePrototype..."<<std::endl;
}

Prototype *ConcretePrototype::Clone() const
{
    return new ConcretePrototype(*this);
}

/*main.cpp*/
#include "Prototype.h"
#include <iostream>

int main()
{
    Prototype *p=new ConcretePrototype();
    Prototype *p1=p->Clone();
    return 0;
}