在内存中序列化,反序列化对象实体 来完成对象实体的深拷贝

 using System.Runtime.Serialization.Formatters.Binary;  
 using System.IO; 


 using (Stream s = (Stream)(new MemoryStream()))  
 {  
     BinaryFormatter bf = new BinaryFormatter();  
     bf.Serialize(s, your_obj);  
     s.Position = 0;  
     your_obj_next = (your_obj_type)bf.Deserialize(s);  
 }