//桥接模式 Abstraction operation 
#include<iostream>
using namespace std;

class AbstractionImp{
	public:
		virtual void Operation()=0;
		virtual ~AbstractionImp(){}
};

class AbstractionImpA:public AbstractionImp{
	public:
		void Operation(){
			cout<<"AbstractionA.com"<<endl;
		}
};

class AbstractionImpB:public AbstractionImp{
	public:
		void Operation(){
			cout<<"AbstractionB.com"<<endl;
		}
};

class Abstraction{
	protected:
		AbstractionImp * pb;
	public:
		Abstraction(AbstractionImp * t){
			pb=t;
		}
		virtual void Operation()=0;
		virtual ~Abstraction(){
			delete pb;
		}
};

class AbstractionA:public Abstraction{
	public:
		AbstractionA(AbstractionImp * t):Abstraction(t){}
		void Operation(){
			pb->Operation();
		}
};

class AbstractionB:public Abstraction{
	public:
		AbstractionB(AbstractionImp * t):Abstraction(t){}
		void Operation(){
			pb->Operation();
		}
};

int main(void)
{
	Abstraction * my=new AbstractionA(new AbstractionImpA());
	my->Operation();
	delete my;
	return 0;
}