TemplateMethod模式

最新推荐文章于 2025-09-07 01:02:55 发布

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最新推荐文章于 2025-09-07 01:02:55 发布

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文章标签： python

原文链接：https://my.oschina.net/u/221120/blog/890187

本文通过C++代码示例详细介绍了模板方法设计模式的应用。该模式定义了一个算法骨架，将某些步骤延迟到子类中实现，允许子类不改变算法结构即可重新定义算法的某些特定步骤。

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//TemplateMethod模式 

class AbstractClass
{
public:
	AbstractClass(){}
	virtual ~AbstractClass(){}
	//定义了算法的轮廓
	void TemplateMethod(){PrimitiveOperation1();PrimitiveOperation2();}

protected:
	// 纯虚函数,由派生类实现之
	virtual void PrimitiveOperation1() = 0;
	virtual void PrimitiveOperation2() = 0;
};

class ConcreateClassA: public AbstractClass
{
public:
	ConcreateClassA(){}
	virtual ~ConcreateClassA(){}

protected:
	void PrimitiveOperation1(){printf("this is a ConcreateClassA PrimitiveOperation1!\n");}
	void PrimitiveOperation2(){printf("this is a ConcreateClassA PrimitiveOperation2!\n");}
};

class ConcreateClassB: public AbstractClass
{
public:
	ConcreateClassB(){}
	virtual ~ConcreateClassB(){}

protected:
	void PrimitiveOperation1(){printf("this is a ConcreateClassB PrimitiveOperation1!\n");}
	void PrimitiveOperation2(){printf("this is a ConcreateClassB PrimitiveOperation2!\n");}
};


//TemplateMethod模式 
int _tmain(int argc, _TCHAR* argv[])
{
	AbstractClass* pConcreateClassA = new ConcreateClassA;
	pConcreateClassA->TemplateMethod();

	AbstractClass* pConcreateClassB = new ConcreateClassB;
	pConcreateClassB->TemplateMethod();

	delete pConcreateClassA;
	delete pConcreateClassB;

	getchar();
	return 0;
}

转载于:https://my.oschina.net/u/221120/blog/890187