public ActionResult getArticleComment(string ArticleId)
        {
            var getNewComList = _articleCommentService.GetList(t => t.ArticleId == ArticleId);
            //接受一个对像,内部把此对象使用javaScript序列化类对象志字符串,发送到前台
            var userList = _userService.GetList();
            var data     = from u in getNewComList
                           join t in userList on u.UpId equals t.Id
                           orderby u.AddedDate descending
                           select new { u.Id, t.UserName, u.Content, u.AddedDate, u.ReplyId, u.ReplyCount };

            var result = new { Data = data };

            return(Json(result, JsonRequestBehavior.AllowGet));
        }