中介者模式 C++ 实现

#include<iostream>#include<string>#include<vector>#include<cstdlib>using namespace std;/*  mediator 模式  问题：重在理解，结构图见网络。 */class colleage{  private:        string name;        string content;  public:        colleage(string n = " "):name(n)        {}        void set_name(string name)        {            this->name = name;        }                      string get_name()        {          return this->name;            }                void set_content(string content)        {              this->content = content;        }                string get_content()        {          return this->content;            }                virtual void talk()        {                    }};class monitor: public colleage{  public:   monitor(string n = " "):colleage(n)  {          }     void talk()  {    cout <<"monitor says:"<<get_content()<< endl;        }      };class tuanzishu: public colleage{     public:   tuanzishu(string n = " "):colleage(n)   {             }        void talk()   {     cout <<"tuanzishu say:"<<get_content()<< endl;        }      };class studentA: public colleage{ public:  studentA(string n = " "):colleage(n)  {            }      void talk()  {    cout <<"studentA say:"<< get_content()<< endl;        }    };class studentB: public colleage{ public:  studentB(string n = " "):colleage(n)  {          }    void talk()  {    cout <<"studentB say:"<<get_content()<< endl;        }        };class mediator{  public:        vector<colleage*> studentlist;        virtual void add_students(colleage *student)        {          studentlist.push_back(student);            }                   };class QQmediator: public mediator{  public:      virtual void notify(colleage *student)      {            student->talk();            for(int i = 0; i < studentlist.size(); i++)            {               if(student != studentlist[i])                  {                     studentlist[i]->talk();                     }             }      }            virtual void chart(colleage *student1, colleage *student2)      {        student1->talk();        student2->talk();            }               };int main(){//初始化   QQmediator qq;  monitor studentmonitor("banzhang");  tuanzishu studenttuanzishu("tuanzishu");  studentA studentXM("xiaoming");  studentB studentXH("xiaohong");    //向中介者中添加同学     qq.add_students(&studentmonitor);  qq.add_students(&studenttuanzishu);  qq.add_students(&studentXM);  qq.add_students(&studentXH);    //设置各位同学的回复     studentmonitor.set_content("班会现在开始，请大家积极发言。");  studenttuanzishu.set_content("班会主题是XXXXX");  studentXM.set_content("我认为XXXXX");  studentXH.set_content("我不认为XXXX");    //班长通知后开始     cout <<"班长发布一个通知后的情景："<< endl;  qq.notify(&studentmonitor);     //同学私聊    cout <<"同学私聊的情景："<< endl;   studentXM.set_content("你觉得今天的班会怎么样？");  studentXH.set_content("一般般吧，还是老样子，没解决什么问题");  qq.chart(&studentXM,&studentXH);    system("pause");   return 0;}

 

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