這篇文章主要介紹了C#中4種深拷貝方法介紹,本文講解了利用反射實(shí)現(xiàn)、利用xml序列化和反序列化實(shí)現(xiàn)、利用二進(jìn)制序列化和反序列化實(shí)現(xiàn)、利用silverlight DataContractSerializer實(shí)現(xiàn)，用于在silverlight 客戶端使用等4種方法,需要的朋友可以參考下

1：利用反射實(shí)現(xiàn)

public static T DeepCopy<T>(T obj)
{
  //如果是字符串或值類型則直接返回
  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序列化和反序列化實(shí)現(xiàn)

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：利用二進(jìn)制序列化和反序列化實(shí)現(xiàn)

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);
    //反序列化成對(duì)象
    retval = bf.Deserialize(ms);
    ms.Close();
  }
  return (T)retval;
}

4：利用silverlight DataContractSerializer實(shí)現(xiàn)，用于在silverlight 客戶端使用

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;

補(bǔ)充：第一個(gè)已經(jīng)通過遞歸實(shí)現(xiàn)了深拷貝。

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