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