设计模式(Adapter)

本文通过三种实现方式详细介绍了适配器模式:类适配器、对象适配器(组合方式)及对象适配器(参数方式)。每种实现都展示了如何使不兼容的接口能够一起工作。

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//类Adapter
#include <iostream>
using namespace std;

class CAdaptee
{
public:
 CAdaptee(){}
 virtual ~CAdaptee(){}

public:
 void Func1(){cout<<"CAdaptee"<<endl;}

};

class CTarget
{
public:
 CTarget(){}
 virtual ~CTarget(){}

public:
 virtual void Func() = 0;

};

class CAdapter : public CTarget, private CAdaptee
{
public:
 CAdapter(){}
 virtual ~CAdapter(){}

public:
 void Func(){Func1();}

};

void main()
{
 CTarget *pTarget = new CAdapter();
 pTarget->Func();
 delete pTarget;
}


//对象Adapter(组合)
#include <iostream>
using namespace std;

class CAdaptee
{
public:
 CAdaptee(){}
 virtual ~CAdaptee(){}

public:
 void Func1(){cout<<"CAdaptee"<<endl;}

};

class CTarget
{
public:
 CTarget(){}
 virtual ~CTarget(){}

public:
 virtual void Func() = 0;

};

class CAdapter : public CTarget
{
public:
 CAdapter(){}
 virtual ~CAdapter(){}

public:
 void Func(){m_Adaptee.Func1();}

private:
 CAdaptee m_Adaptee;

};

void main()
{
 CTarget *pTarget = new CAdapter();
 pTarget->Func();
 delete pTarget;
}

//对象Adapter(参数)
#include <iostream>
using namespace std;

class CAdaptee
{
public:
 CAdaptee(){}
 virtual ~CAdaptee(){}

public:
 void Func1(){cout<<"CAdaptee"<<endl;}

};

class CTarget
{
public:
 CTarget(){}
 virtual ~CTarget(){}

public:
 virtual void Func() = 0;

};

class CAdapter : public CTarget
{
public:
 CAdapter(CAdaptee *pAdaptee){m_pAdaptee = pAdaptee;}
 virtual ~CAdapter(){}

public:
 void Func(){m_pAdaptee->Func1();}

private:
 CAdaptee *m_pAdaptee;

};

void main()
{
 CAdaptee *pAdaptee = new CAdaptee();
 CTarget *pTarget = new CAdapter(pAdaptee);
 pTarget->Func();
 delete pTarget;
 delete pAdaptee;
}

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