c/cpp / 设计模式 / 简单工厂模式 -ag凯发k8国际

--------------------------------------------- -- 时间：2019-03-19 -- 创建人：ruo_xiao -- 邮箱：xclsoftware@163.com ---------------------------------------------

一、实质

        本质是工厂实例创建并输出产品类实例的过程。

二、栗子

1、产品类（抽象类）：汽车

#ifndef __virtualcar_h__ #define __virtualcar_h__#include using namespace std;class virtualcar { public:virtualcar(void){};virtual ~virtualcar(void){}; public:virtual string carname() = 0; }; #endif

2、产品实例：具体汽车

#ifndef __audicar_h__ #define __audicar_h__#include "../virtualcar/virtualcar.h" class audicar : public virtualcar { public:audicar(void){};~audicar(void){}; public:string carname(){return "my name is audi!";} };#endif

 

#ifndef __porschecar_h__ #define __porschecar_h__#include "../virtualcar/virtualcar.h" class porschecar : public virtualcar { public:porschecar(void){};~porschecar(void){}; public:string carname(){return "my name is porsche!";} };#endif #ifndef __benzcar_h__ #define __benzcar_h__#include "../virtualcar/virtualcar.h"class benzcar : public virtualcar { public:benzcar(void){};~benzcar(void){}; public:string carname(){return "my name is benz!";} };#endif

 3、工厂：汽车工厂

#ifndef __carfactory_h__ #define __carfactory_h__#include "../virtualcar/virtualcar.h" #include "../audicar/audicar.hpp" #include "../benzcar/benzcar.hpp" #include "../porschecar/porschecar.hpp"class carfactory { public:carfactory(void){paudi = new audicar();pbenz = new benzcar();pporsche = new porschecar();}~carfactory(void){delete paudi; paudi = nullptr;delete pbenz; pbenz = nullptr;delete pporsche; pporsche = nullptr;} private:audicar *paudi;benzcar *pbenz;porschecar *pporsche; public:virtualcar *getcar(int imode){switch (imode){case 1:return paudi;case 2:return pbenz;case 3:return pporsche;}return nullptr;} };#endif

4、客户端

#include #include using namespace std;#include "source\virtualcar\virtualcar.h" #include "source\carfactory\carfactory.hpp"int main() { virtualcar *pcarbase;carfactory carall;pcarbase = carall.getcar(1);cout<carname()<carname()<carname()<6、结果：

三、源码工程

https://download.csdn.net/download/itworld123/11036841

 

（saw：game over！）

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