小故事学设计模式之Decorate: (二)老婆的新衣服

using System;
using System.Collections.Generic;
using System.Text;

public class Feifei
{
    private string _myclothes;
    public string MyClothes
    {
        get{return _myclothes;}
        set{_myclothes = value;}
    }
}

public class BlueSkirt:Feifei
{
    private Feifei _f;
    private StringBuilder _myclothes = new StringBuilder();
    
    public BlueSkirt(Feifei f)
    {
        _f = f;        
    }
    
    public string MyClothes
    {        
        get
        {            
            _myclothes.Append(_f.MyClothes);
            _myclothes.Append("and a piece of blue skirt");
            
            return _myclothes.ToString();            
        }
        set{;}
        
    }
}


public class PinkSkirt:Feifei
{
    private Feifei _f;
    private StringBuilder _myclothes = new StringBuilder();
    
    public PinkSkirt(Feifei f)
    {
        _f = f;        
    }
    
    public string MyClothes
    {        
        get
        {            
            _myclothes.Append(_f.MyClothes);
            _myclothes.Append("and a piece of pink skirt");
            
            return _myclothes.ToString();            
        }
        set{;}
        
    }
}


public class MyClass
{    
    public static void Main()
    {
        //老婆穿白色的鞋子出场
        Feifei f1 = new Feifei();
        f1.MyClothes = "I have white shoes,";
        
        //换上蓝色的裙子
        BlueSkirt f2 = new BlueSkirt(f1);
        Console.WriteLine(f2.MyClothes);
        
        //换上粉色的裙子
        PinkSkirt f3 = new PinkSkirt(f1);
        Console.WriteLine(f3.MyClothes);
        
        Console.Read();
    }

}