Adpater

最新推荐文章于 2019-12-12 19:46:17 发布

原创最新推荐文章于 2019-12-12 19:46:17 发布 · 495 阅读

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#class #delete #system

c++ patterns 2010-11-26 专栏收录该内容

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本文通过一个具体的C++代码示例介绍了如何使用多继承实现适配器模式，使目标类能够利用适配者类的功能。该模式下，适配器类作为目标类和适配者类的子类，实现了将适配者接口转换为目标类接口的目标。

利用多继承使target类拥有了Adpatee的功能

#include <cstdlib>
#include <iostream>

using namespace std;

class Target
{
public:
virtual ~Target(){cout<<"Target 基类析构"<<endl;}
virtual void TargetDo(){cout<<"Target do sth."<<endl;}
virtual void AdpateeDo() = 0;
};
class Adpatee
{
public:
virtual ~Adpatee(){cout<<"Adpatee 基类析构"<<endl;}
void Do(){cout<<"Adpatee do sth."<<endl;}
};
class Adpater:public Target,private Adpatee
{
public:
virtual ~Adpater(){cout<<"Adpater 子类析构"<<endl;}
virtual void AdpateeDo(){Adpatee::Do();}
};
void DoUseTarget(Adpater* pAdp)
{
pAdp->TargetDo();
pAdp->AdpateeDo();
}
int main(int argc, char *argv[])
{
 Adpater* pAdp = new Adpater;
 DoUseTarget(pAdp);
 delete pAdp;
 system("PAUSE");
 return EXIT_SUCCESS;
}