设计模式复习-外观模式

为了系统中的一组接口提供一个一致的界面，此模式定义了一个高层接口，这个接口使得这一子系统更加容易使用。

#pragma once #include "stdafx.h" #include<string> #include<iostream> #include<windows.h> using namespace std; //外观模式（Facade）class SubSystemOne { public:VOID SubSystemA() {cout << "SubSystem method A" << endl;} };class SubSystemTwo { public:VOID SubSystemB() {cout << "SubSystem method B" << endl;} };class SubSystemThree { public:VOID SubSystemC() {cout << "SubSystem method C" << endl;} };class Facade { private:SubSystemOne * mpSubSystemOne = NULL;SubSystemTwo * mpSubSystemTwo = NULL;SubSystemThree * mpSubSystemThree = NULL;public:Facade() {mpSubSystemOne = new SubSystemOne();mpSubSystemTwo = new SubSystemTwo();mpSubSystemThree = new SubSystemThree();}VOID FacadeShowA() {mpSubSystemOne->SubSystemA();mpSubSystemThree->SubSystemC();}VOID FacadeShowB() {mpSubSystemTwo->SubSystemB();mpSubSystemThree->SubSystemC();}~Facade() {delete mpSubSystemOne;delete mpSubSystemTwo;delete mpSubSystemThree;} };int main() {Facade *pFacade = new Facade();pFacade->FacadeShowA();pFacade->FacadeShowB();delete pFacade;getchar();return 0; }

 

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