设计模式之适配器模式(Adapter)

优点：1)使用已存在的类，接口不符合要求
2)创建复用的类，该类可以与其它不相关的类协同工作

#include <iostream>using namespace std;class Target{public:    virtual void Interface() = 0;};class Adapter{public:    void SpecificInterfaceA(){ cout<<"Called SpecificInterfaceA"<<endl;}    void SpecificInterfaceB(){ cout<<"Called SpecificInterfaceB"<<endl;}};class AdapterClassA : public Target, public Adapter{public:    void Interface(){SpecificInterfaceA();}};class AdapterClassB : public Target{public:    AdapterClassB(){_adapter = new Adapter;}    void Interface(){_adapter->SpecificInterfaceB();}private:    Adapter *_adapter;};int main(){    Target *targetA = new AdapterClassA;    targetA->Interface();    Target *targetB = new AdapterClassB;    targetB->Interface();    return 0;}

运行结果：
Called SpecificInterfaceA
Called SpecificInterfaceB