c++代理模式

1.代理模式简介

   代理模式给某一个对象提供一个代理对象，并由代理对象控制对原对象的引用。通俗的来讲代理模式就是我们生活中常见的中介。

2.源码实现

#include <iostream>
#include <string>

using namespace std;

class Person
{
public:
    Person(string name) : m_Name(name) {};
    ~Person() {};
    virtual void rentHouse()
    {
        cout << m_Name << "需要租一间房子!" << endl;
    }

private:
    string m_Name;
};

//代理
class Intermediary : public Person
{
public:
    Intermediary(string name, Person *person) : Person(name), m_Person(person) {};
    ~Intermediary() {};

    void rentHouse()
    {
        m_Person->rentHouse();
        cout << "中介抽取佣金百分之10!" << endl;
    }

private:
    Person *m_Person;
};

int main(int argc, char **argv)
{
    Person *xiaoming = new Person("小明");
    Person *xiaofang = new Intermediary("小芳", xiaoming);

    xiaofang->rentHouse();

    delete xiaofang;
    delete xiaoming;

    return 0;
}

3.编译源码

$ g++ -o example example.cpp

4.运行及其结果

$ ./example
小明需要租一间房子!
中介抽取佣金百分之10!