Prototype （C++实现）

// Prototype.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <iostream>

using namespace std;

class Prototype
{
public:
 Prototype()
 {
  cout<<"Construction of Prototype"<<endl;
 }
 virtual ~ Prototype()
 {
  cout<<"Destruction of Prototype"<<endl;
 }

 virtual Prototype* Clone()=0;
};

 

class ConcretePrototype1:public Prototype
{
public:
   ConcretePrototype1()
   {
   cout<<"Construction of ConcretePrototype1"<<endl;
   }

  ConcretePrototype1( ConcretePrototype1& p1)
   {
     cout<<"Copy construction of ConcretePrototype1"<<endl;
   }

   virtual ~ConcretePrototype1()
   {
   cout<<"Destruction of ConcretePrototype1"<<endl;
   }
   virtual Prototype* Clone()
   {
    return new ConcretePrototype1(*this);
   }
};

 

class ConcretePrototype2:public Prototype
{
 public:
   ConcretePrototype2()
   {
   cout<<"Construction of ConcretePrototype2"<<endl;
   }

  ConcretePrototype2( ConcretePrototype2& p1)
   {
     cout<<"Copy construction of ConcretePrototype2"<<endl;
   }

   virtual ~ConcretePrototype2()
   {
   cout<<"Destruction of ConcretePrototype2"<<endl;
   }
   virtual Prototype* Clone()
   {
    return new ConcretePrototype2(*this);
   }

};

int _tmain(int argc, _TCHAR* argv[])
{
 //Client
 Prototype *P_Prototype1=new ConcretePrototype1();
 Prototype *P_Prototype11=P_Prototype1->Clone();
  
 Prototype *P_Prototype2=new ConcretePrototype2();
 Prototype *P_Prototype21=P_Prototype2->Clone();
 
 delete P_Prototype1;
 delete P_Prototype11;
 delete P_Prototype2;
 delete P_Prototype21;

 return 0;
}