设计模式19——代理模式

代理指向真正的实体，完成相应的任务。

#ifndef Proxy_H_H
#define Proxy_H_H

class Base{
public:
    virtual void show() = 0;
};

class Real : public Base{
public:
    virtual void show(){
        cout << "This is real!" << endl;
    }
};

class Proxy : public Base{
public:
    virtual void show(){
        pReal->show();
    }
    void setReal(Real *pReal0){
        pReal = pReal0;
    }
private:
    Real *pReal;
};


void ProxyTest(){
    
    Real *base1 = new Real();
    Proxy *base2 = new Proxy();
    base2->setReal(base1);

    base2->show();
}

#endif