1：利用反射实现
1 public static T DeepCopy<T>(T obj)
2 {
3 //如果是字符串或值类型则直接返回
4 if (obj is string || obj.GetType().IsValueType) return obj;
5
6 object retval = Activator.CreateInstance(obj.GetType());
7 FieldInfo[] fields = obj.GetType().GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
8 foreach (FieldInfo field in fields)
9 {
10 try { field.SetValue(retval, DeepCopy(field.GetValue(obj))); }
11 catch { }
12 }
13 return (T)retval;
14 }
2：利用xml序列化和反序列化实现
1 public T DeepCopy<T>(T obj)
2 {
3 object retval;
4 using (MemoryStream ms = new MemoryStream())
5 {
6 XmlSerializer xml = new XmlSerializer(typeof(T));
7 xml.Serialize(ms, obj);
8 ms.Seek(0, SeekOrigin.Begin);
9 retval = xml.Deserialize(ms);
10 ms.Close();
11 }
12 return (T)retval;
13 }
3：利用二进制序列化和反序列化实现
1 public static T DeepCopy<T>(T obj)
2 {
3 object retval;
4 using (MemoryStream ms = new MemoryStream())
5 {
6 BinaryFormatter bf = new BinaryFormatter();
7 //序列化成流
8 bf.Serialize(ms, obj);
9 ms.Seek(0, SeekOrigin.Begin);
10 //反序列化成对象
11 retval = bf.Deserialize(ms);
12 ms.Close();
13 }
14 return (T)retval;
15 }
4：利用silverlight DataContractSerializer实现，用于在silverlight 客户端使用
1 public static T DeepCopy<T>(T obj)
2 {
3 object retval;
4 using (MemoryStream ms = new MemoryStream())
5 {
6 DataContractSerializer ser = new DataContractSerializer(typeof(T));
7 ser.WriteObject(ms, obj);
8 ms.Seek(0, SeekOrigin.Begin);
9 retval = ser.ReadObject(ms);
10 ms.Close();
11 }
12 return (T)retval;
补充：第一个已经通过递归实现了深拷贝。