设计模式之装饰模式

public class person  // component
{
 public:
    person(){};
    ~person(){};
    show() {cout<<"i wear";}
}

public class cloth // decorator
{
private:
  person *temp;
public:
   cloth(){};
    decorator(person *t){temp=t;}
   ~cloth(){};
}

public class tshirt :public cloth  //concrete decorator1
{
public:
  tshirt(person * t):d(t){}；
  void show()
    {temp->show();
     cout<< "tshirt";
    }
}

public class skirt :public cloth //concrete decorator12
{
public:
  skirt (person * t):d(t){}；
  void show()
    {temp->show();
     cout<< "tkirt";
    }
}

main（）
{
 person *p=new person();
 tshirt *ten=new tshirt();
 ten->decorator(p);
 ten->show();
 tskirt *tn=new tskirt();
 tn->decorator(p);
 tn->show();
}
给基本类component动态的增加新功能，形成具体的decorator类。