Untitled2.cpp

#include<iostream>
#include <vector>
#include <string>
using namespace std;

class Prototype //抽象基类 
{ 
private:
	string m_strName;
public: 
	Prototype(string strName){ m_strName = strName; }
	Prototype() { m_strName = " "; }
	void Show() 
	{
		cout<<m_strName<<endl;
	}
	virtual Prototype* Clone() = 0 ; 
} ; 

// class ConcretePrototype1 
class ConcretePrototype1 : public Prototype 
{ 
public: 
	ConcretePrototype1(string strName) : Prototype(strName){}
	ConcretePrototype1(){}

	virtual Prototype* Clone() 
	{ 
		ConcretePrototype1 *p = new ConcretePrototype1() ; 
		*p = *this ; //复制对象，注意与p=this的区别 
		return p ; 
	} 
} ; 

// class ConcretePrototype2 
class ConcretePrototype2 : public Prototype 
{ 
public: 
	ConcretePrototype2(string strName) : Prototype(strName){}
	ConcretePrototype2(){}

	virtual Prototype* Clone() 
	{ 
		ConcretePrototype2 *p = new ConcretePrototype2() ; 
		*p = *this ; //复制对象 
		return p ; 
	} 
} ; 

//客户端
int main()
{
	ConcretePrototype1* test = new ConcretePrototype1("小王");
	ConcretePrototype2* test2 = (ConcretePrototype2*)test->Clone();
	test->Show();
	test2->Show();
	return 0;
}