--------------------------------------------- -- 時間：2019-03-19 -- 創建人：Ruo_Xiao -- 郵箱：xclsoftware@163.com ---------------------------------------------

一、實質

? ? ? ? 本質是工廠實例創建并輸出產品類實例的過程。

二、栗子

1、產品類（抽象類）：汽車

#ifndef __VirtualCar_H__ #define __VirtualCar_H__#include <iostream> using namespace std;class VirtualCar { public:VirtualCar(void){};virtual ~VirtualCar(void){}; public:virtual string CarName() = 0; }; #endif

2、產品實例：具體汽車

#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、工廠：汽車工廠

#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、客戶端

#include<iostream> #include<string> using namespace std;#include "source\VirtualCar\VirtualCar.h" #include "source\CarFactory\CarFactory.hpp"int main() { VirtualCar *pCarBase;CarFactory CarAll;pCarBase = CarAll.GetCar(1);cout<<pCarBase->CarName()<<endl;pCarBase = CarAll.GetCar(2);cout<<pCarBase->CarName()<<endl;pCarBase = CarAll.GetCar(3);cout<<pCarBase->CarName()<<endl;cin.get();return 0; }

6、結果：

三、源碼工程

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

?

（SAW：Game Over！）

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