[Serializable]
     public class Data : ICloneable
     {


         public int Level { get; set; }
         public string ID { get; set; }
         public string EID { get; set; }
         public string Name { get; set; }
         public List<Data> Childs { get; set; }
       
         public object Clone()
         {
             using (MemoryStream ms = new MemoryStream(1000))
             {
                 object CloneObject;
                 BinaryFormatter bf = new BinaryFormatter(null, new StreamingContext(StreamingContextStates.Clone));
                 bf.Serialize(ms, this);
                 ms.Seek(0, SeekOrigin.Begin);
                 // 反序列化至另一个对象(即创建了一个原对象的深表副本) 
                 CloneObject = bf.Deserialize(ms);
                 // 关闭流 
                 ms.Close();
                 return CloneObject;
             }




         }
     }