//
// Created by andrew on 2020年11月15日.
//
#include <iostream>

using namespace std;

class Subject {
public:
 virtual ~Subject(){

 }
 virtual void sailBook() = 0;
 virtual void Dstroy() = 0;
};

class RealSubjectBook : public Subject {
public:
 virtual void sailBook() {
 cout << "sail book" << endl;
 }
 virtual void Dstroy(){

 }
};

class taobaoProxy : public Subject {
public:
 virtual void sailBook(){
 RealSubjectBook *rsb = new RealSubjectBook;
 dazhe();
 rsb->sailBook();
 dazhe();
 }
 void Dstroy()
 {
 delete m_subject;
 }

public:
 void dazhe(){
 cout << "双 11 打折" << endl;
 }

private:
 Subject *m_subject;
};


int main(int argc, char *argv[]) {

 Subject *s = new taobaoProxy;
 s->sailBook();
 s->Dstroy();
 delete s;
 return 0;
}