#pragma once #include "stdafx.h" #include<map> #include<set> #include<string> #include<iostream> using namespace std;/*設計模式-中介者模式（Mediator）用一個中介對象來封裝一系列的對象交互。中介者使各個對象不需要 顯示地相互引用，從而使其耦合松散，而且可以獨立地改變他們之間的交互。 中介者模式的有點來自集中控制，其缺點也是他，中介者模式一般應用于一組對象 定義良好但是復雜的方式進行通訊的場合，以及想定制一個分布式在多個類中的行為， 而又不想生成太多的子類的場合。 */class CMediator {//抽象中介者 public:virtual void Send(const string &strPeople, const string &strMessage) = 0; };class CColleague {//抽象同事類 protected:CMediator *mpMediator; public:CColleague(CMediator *pMediator) {mpMediator = pMediator;}virtual void Notify(const string &strMessage) = 0; };class CConcreteColleague1 :public CColleague {//同事類1 public:CConcreteColleague1(CMediator *pMediator) :CColleague(pMediator) {}void Send(const string &strPeople, const string &strMessage) {mpMediator->Send(strPeople , strMessage);}void Notify(const string &strMessage) {cout << "tong shi 1 de dao xin xi:" << strMessage << endl;} };class CConcreteColleague2 :public CColleague {//同事類2 public:CConcreteColleague2(CMediator *pMediator) :CColleague(pMediator) {}void Send(const string &strPeople, const string &strMessage) {mpMediator->Send(strPeople, strMessage);}void Notify(const string &strMessage) {cout << "tong shi 2 de dao xin xi:" << strMessage << endl;} };class CConcreteMediator :public CMediator {//具體中介者類 private:map<string, CColleague*>mpColleague; public:CConcreteMediator() {mpColleague.clear();}void Send(const string &strPeople, const string &strMessage) {mpColleague[strPeople]->Notify(strMessage);}void AddColleague(const string &strPeople ,CColleague * pColleague) {mpColleague[strPeople] = pColleague;} };int main() {CConcreteMediator *pM = new CConcreteMediator();CConcreteColleague1 *pC1 = new CConcreteColleague1(pM);CConcreteColleague2 *pC2 = new CConcreteColleague2(pM);pM->AddColleague("pC1", pC1);pM->AddColleague("pC2", pC2);pC1->Send("pC2","chi fan mei?");pC2->Send("pC1", "mei ne");delete pM, delete pC1, delete pC2;getchar();return 0; }

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