C++设计模式——适配器模式

适配器模式：将一个类的接口转换成客户希望的另外一个接口。Adapter模式使得原来由于接口不兼容而不能一起工作的那些类可以一起工作。

角色：

（1）Target：这是客户所期待的接口，Target可以是具体的或抽象的类，也可以是接口。

（2）Adaptee：需要适配的类。

（3）Adapter：通过在内部包装一个Adaptee对象，把源接口转换成目标接口。

#include <iostream>
using namespace std;
//球员
class Player
{
protected:
    string name;
public:
    Player(string name):name(name){}
    virtual void Attack() = 0;
    virtual void Defense() = 0;
    virtual~Player() {}
};
//前锋
class Forwards : public Player
{
public:
    Forwards(string name):Player(name){}
    virtual void Attack() {
        cout << "前锋" << name << "进攻" << endl;
    }
    virtual void Defense() {
        cout << "前锋" << name << "防守" << endl;
    }
};

//中锋
class Center : public Player
{
public:
    Center(string name) :Player(name) {}
    virtual void Attack() {
        cout << "中锋" << name << "进攻" << endl;
    }
    virtual void Defense() {
        cout << "中锋" << name << "防守" << endl;
    }
};

//后卫
class Guards : public Player
{
public:
    Guards(string name) :Player(name) {}
    virtual void Attack() {
        cout << "后卫" << name << "进攻" << endl;
    }
    virtual void Defense() {
        cout << "后卫" << name << "防守" << endl;
    }
};

class ForeignCenter {
public:
    void SetName(string name) {
        this->name = name;
    }
    string GstName() {
        return name;
    }
    void ForeignAttack() {
        cout << "外籍中锋 " << name << " 攻击" << endl;
    }
    void ForeignDefense() {
        cout << "外籍中锋 " << name << " 防守" << endl;
    }

private:
    string name;
};

//适配器类 翻译者
class Translator :public Player {
public:
    Translator(string name) :Player(name) {
        ym = new ForeignCenter;
        ym->SetName(name);
    }
    ~Translator()
    {
        if (ym != NULL) delete ym;
    }
    void Attack() { //翻译者将Attack 翻译成 ForeignAttack
        ym->ForeignAttack();
    }
    void Defense() {
        ym->ForeignDefense(); //翻译者将Defense 翻译成 ForeignDefense
    }

private:
    ForeignCenter* ym; //外籍中锋
};
int main()
{
    Player* b = new Forwards("巴蒂尔");
    b->Attack();
    Player* c = new Guards("麦克格雷迪");
    c->Attack();
    Player* ym  = new Translator("姚明"); //姚明问: "Attack和Defense是什么意思？"
    ym->Attack();
    ym->Defense();
    system("pause");
    return 0;
}