21.C++设计模式-代理模式

#define  _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;

class Protocol {
public:
    virtual void sailBook() = 0;
};

class RealStore :public Protocol {
public:
    virtual void sailBook() {
        cout<<"卖书"<<endl;
    }
};

class TaobaoProxy :public Protocol {
public:
    Protocol* protocol;
    TaobaoProxy(Protocol* protocol) {
        this->protocol = protocol;
    }
    virtual void sailBook() {
        protocol->sailBook();
        cout << "淘宝代理卖书" << endl;
    }
};

void main() {
    RealStore* r = new RealStore;
    TaobaoProxy* t = new TaobaoProxy(r);
    t->sailBook();
    delete t;
    delete r;
    system("pause");
}