解析C#设计模式编程中的装饰者模式

 //汪峰战队
  abstract class WangFengTeam
  {
    //执行策划命令
    abstract public void Acrion();
  }

  //学员
  class Student : WangFengTeam
  {
    // Methods
    override public void Acrion()
    {
      Console.WriteLine("汪峰团队学员情况：");
    }
  }

  // 战队总策划
  abstract class Direct : WangFengTeam
  {
    //汪峰战队
    protected WangFengTeam team;

    // 策划活动
    public void SetComponent(WangFengTeam team)
    {
      this.team = team;
    }
    //执行策划
    override public void Acrion()
    {
      if (team != null)
      {
        team.Acrion();
      }
    }
  }

  //男孩唱狂放型的，构建一个组合。
  class BoyTeam : Direct
  {
    // 组合名称
    public string teamName= "锋利的Jquery";

    //具体策划
    override public void Acrion()
    {
      base.Acrion();
      Console.WriteLine("我是汪峰团队，狂放型的。");
    }
  }

  //女孩唱婉约型的，来个模特表演
  class GrilTeam : Direct
  {
    //具体策划
    override public void Acrion()
    {
      base.Acrion();      

      Console.WriteLine("我是汪峰团队，婉约型的。");

      //模特表演
      show();
    }

    public void show()
    {
      Console.WriteLine("婉约型，走秀");
    }
  }

 public static void Main()
    {
      Student team = new Student();
      BoyTeam boy = new BoyTeam();
      GrilTeam girl = new GrilTeam();

      //团队男孩装饰
      boy.SetComponent(team);
      //团队女孩装饰
      girl.SetComponent(boy);
      girl.Acrion();
      Console.Read();
    }

MemoryStream memoryStream = new MemoryStream(new byte[] {95,96,97,98,99});
      // 扩展缓冲的功能
      BufferedStream buffStream = new BufferedStream(memoryStream);
      // 添加加密的功能
      CryptoStream cryptoStream = new CryptoStream(memoryStream,new AesManaged().CreateEncryptor(),CryptoStreamMode.Write);
      // 添加压缩功能
      GZipStream gzipStream = new GZipStream(memoryStream, CompressionMode.Compress, true);