94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*******************************************************************
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* Copyright (c) 2022~2023 XMuli All rights reserved.
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* GitHub: https://github.com/XMuli
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* Description: 工厂方法模式(Factory Method)
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* IProduct 下面有多个具体类，都通过 IFactory 定义的好接口，
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* 通过具体的 Factory 去 new 具体的 Product 对象
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* See: https://blog.csdn.net/silangquan/article/details/20492293
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******************************************************************/
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#pragma once
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#include <iostream>
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using namespace std;
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/********************************************************
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每创建一个具体的 Product 类，就得创建一个具体的 Factory 类
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********************************************************/
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class IProduct
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{
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public:
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virtual ~IProduct() = default;
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virtual void doSomeThing() = 0;
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};
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class AProduct : public IProduct
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{
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public:
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virtual ~AProduct() = default;
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virtual void doSomeThing() override {
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cout << "this is A Product, do some thing..." << endl;
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};
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};
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class BProduct : public IProduct
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{
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public:
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virtual ~BProduct() = default;
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virtual void doSomeThing() override {
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cout << "this is B Product, do some thing..." << endl;
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};
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};
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class CProduct : public IProduct
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{
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public:
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virtual ~CProduct() = default;
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virtual void doSomeThing() override {
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cout << "this is C Product, do some thing..." << endl;
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};
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};
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class IFactory
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{
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public:
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virtual IProduct* creatProduct() = 0;
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};
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class AFactory : public IFactory
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{
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public:
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virtual ~AFactory() = default;
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virtual IProduct* creatProduct() override { return new AProduct(); };
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};
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class BFactory : public IFactory
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{
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public:
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virtual ~BFactory() = default;
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virtual IProduct* creatProduct() override { return new BProduct(); };
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};
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class CFactory : public IFactory
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{
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public:
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virtual ~CFactory() = default;
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virtual IProduct* creatProduct() override { return new CProduct(); };
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};
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//int main()
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//{
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// AFactory aFactory;
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// BFactory bFactory;
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// CFactory cFactory;
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// aFactory.creatProduct()->doSomeThing();
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// bFactory.creatProduct()->doSomeThing();
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// cFactory.creatProduct()->doSomeThing();
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// return 0;
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//}
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/*****************************打印结果*******************************
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this is A Product, do some thing...
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this is B Product, do some thing...
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this is C Product, do some thing...
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******************************************************************/ |