设计模式2：工厂方法模式【创建型】

工厂模式实例解析

最新推荐文章于 2025-08-08 20:00:00 发布

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本文通过一个具体的工厂模式实现示例，介绍了如何使用工厂模式来创建不同类型的对象。代码中定义了两个具体的产品类（CSingleCoreA 和 CSingleCoreB），并实现了对应的工厂类（CFactoryA 和 CFactoryB）。通过工厂类创建产品实例，展示了工厂模式的基本用法。

#include <iostream>
using namespace std;


struct ISingleCore
{
public:
	virtual ~ISingleCore() { }

	virtual void Produce() = 0;
};

class CSingleCoreA : public ISingleCore
{
public:
	virtual ~CSingleCoreA() { }

	virtual void Produce() { cout<<"Single Core A"<<endl; }
};

class CSingleCoreB : public ISingleCore
{
public:
	virtual ~CSingleCoreB() { }

	virtual void Produce() { cout<<"Single Core B"<<endl; }
};

struct IFactory
{
public:
	virtual ~IFactory() { }

	virtual ISingleCore* CreateSingleCore() = 0;
};

class CFactoryA : public IFactory
{
public:
	virtual ~CFactoryA() { }

	virtual ISingleCore* CreateSingleCore() { return new CSingleCoreA(); }
};

class CFactoryB : public IFactory
{
public:
	virtual ~CFactoryB() { }

	virtual ISingleCore* CreateSingleCore() { return new CSingleCoreB(); }
};

void main()
{
	//
	CFactoryA factoryA;

	ISingleCore *pSingleCoreA = factoryA.CreateSingleCore();
	pSingleCoreA->Produce();
	delete pSingleCoreA;

	//
	CFactoryB factoryB;

	ISingleCore *pSingleCoreB = factoryB.CreateSingleCore();
	pSingleCoreB->Produce();
	delete pSingleCoreB;
}