/// <summary>
  /// 选答题
  /// </summary>
  public class SelectTest
  {
    private string other;
    public string 你老婆多大
    {
      get
      {
        return this.other;
      }
      set
      {
        this.other = value;
      }
    }
  }
  /// <summary>
  /// 面试题
  /// </summary>
  public interface Itest
  {
    Itest Clone();

    string 知道设计模式吗
    {
      get;
      set;
    }
    string 设计模式有几种
    {
      get;
      set;
    }
    string 你知道那些
    {
      get;
      set;
    }
    SelectTest 附加题
    {
      get;
      set;
    }

    Test Test
    {
      get;
      set;
    }

    Test Test1
    {
      get;
      set;
    }
  }

 /// <summary>
  /// 继承Itest接口
  /// </summary>
  public class Test : Itest
  {
    private string one;
    private string two;
    private string three;
    private SelectTest other=new SelectTest();
    public string 知道设计模式吗
    {
      get
      {
        return this.one;
      }
      set
      {
        this.one = value;
      }
    }
    public string 设计模式有几种
    {
      get
      {
        return this.two;
      }
      set
      {
        this.two = value;
      }
    }
    public string 你知道那些
    {
      get
      {
        return this.three;
      }
      set
      {
        this.three = value;
      }
    }
    public SelectTest 附加题
    {
      get
      {
        return this.other;
      }
      set
      {
        this.other = value;
      }
    }
    #region IColorDemo 成员

    public Itest Clone()
    {
      //克隆当前类
      return (Itest)this.MemberwiseClone();
    }
    #endregion
  }

 static void Main()
    {
      //印刷试卷
      Itest test = new Test();
      //复制样本试卷
      Itest test1 = test.Clone();
      
      //考生1
      test.设计模式有几种 = "23";
      test.附加题.你老婆多大 = "18";

      //考生2
      test1.设计模式有几种 = "24";
      test1.附加题.你老婆多大 = "20";

      //显示考生答卷内容
      Console.WriteLine("test设计模式有几种:" + test.设计模式有几种);  //23
      Console.WriteLine("test附加题.你老婆多大:" + test.附加题.你老婆多大);  //20
      Console.WriteLine("test1设计模式有几种:" + test1.设计模式有几种);  //24
      Console.WriteLine("test1附加题.你老婆多大:" + test1.附加题.你老婆多大); //20

      Console.ReadKey();
    }

 public Itest Clone()
    {
      //克隆当前类
      Itest itst= (Itest)this.MemberwiseClone();
      SelectTest st = new SelectTest();
      st.你老婆多大 = this.other.你老婆多大;
      itst.附加题 = st;
      return itst;

    } 

/// <summary>
  /// 选答题
  /// </summary>
  [Serializable] 
  public class SelectTest
  {
    private string other;
    public string 你老婆多大
    {
      get
      {
        return this.other;
      }
      set
      {
        this.other = value;
      }
    }
  }
  /// <summary>
  /// 面试题
  /// </summary>
  public interface Itest
  {
    Itest Clone();

    string 知道设计模式吗
    {
      get;
      set;
    }
    string 设计模式有几种
    {
      get;
      set;
    }
    string 你知道那些
    {
      get;
      set;
    }
    SelectTest 附加题
    {
      get;
      set;
    }
   
  }

  /// <summary>
  /// 继承Itest接口
  /// </summary>

  public class Test : Itest
  {
    private string one;
    private string two;
    private string three;
    private SelectTest other=new SelectTest();
    public string 知道设计模式吗
    {
      get
      {
        return this.one;
      }
      set
      {
        this.one = value;
      }
    }
    public string 设计模式有几种
    {
      get
      {
        return this.two;
      }
      set
      {
        this.two = value;
      }
    }
    public string 你知道那些
    {
      get
      {
        return this.three;
      }
      set
      {
        this.three = value;
      }
    }
    public SelectTest 附加题
    {
      get
      {
        return this.other;
      }
      set
      {
        this.other = value;
      }
    }

    
    public Itest Clone()
    {
      SerializableHelper SerializableHelper = new 原型模式.SerializableHelper();
      string target = SerializableHelper.Serializable(this);
      return SerializableHelper.Derializable<Itest>(target); 

    }

  }


 public class SerializableHelper
  {
    public string Serializable(object target)
    {
      using (MemoryStream stream = new MemoryStream())
      {
        new BinaryFormatter().Serialize(stream, target);

        return Convert.ToBase64String(stream.ToArray());
      }
    }

    public object Derializable(string target)
    {
      byte[] targetArray = Convert.FromBase64String(target);

      using (MemoryStream stream = new MemoryStream(targetArray))
      {
        return new BinaryFormatter().Deserialize(stream);
      }
    }

    public T Derializable<T>(string target)
    {
      return (T)Derializable(target);
    }
  }