/// 
    /// JSON帮助类    /// 
    public static class JsonHelper    {        /// 
        /// 格式化成Json字符串        /// 
        /// 需要格式化的对象        /// 
     
      Json字符串
             public static string ToJson(object obj)        {            JavaScriptSerializer serializer = new JavaScriptSerializer();            return serializer.Serialize(obj);        }        /// 
        /// 格式化成Json字符串        /// 
        /// 需要格式化的对象        /// 指定序列化的深度        /// 
     
      Json字符串
             public static string ToJson(object obj, int recursionDepth)        {            JavaScriptSerializer serializer = new JavaScriptSerializer();            serializer.RecursionLimit = recursionDepth;            return serializer.Serialize(obj);        }    }