C#使用JavaScriptSerializer序列化时的时间类型处理

/// <summary>
    /// 序列化请求数据
    /// </summary>
    /// <param name="obj">请求数据</param>
    /// <returns></returns>
    public string LocalSerialize(object obj)
    {
      var jser = new System.Web.Script.Serialization.JavaScriptSerializer();
      var json = jser.Serialize(obj);
      //将时间格式转换为适合阅读习惯的格式
      json = System.Text.RegularExpressions.Regex.Replace(json, @"\\/Date\((\d+)\)\\/", match =>
      {
        DateTime dt = new DateTime(1970, 1, 1);
        dt = dt.AddMilliseconds(long.Parse(match.Groups[1].Value));
        dt = dt.ToLocalTime(); //本地时间
        return dt.ToString(); ;
      });
      return json;
    }