return Content("0")

以前只看到Return view，return Content("0")百度下，就是返回一个文本，这个文本谁来接收呢？ 返回后页面是个什么效果？

        [HttpPost, ValidateInput(false)]

        public ActionResult Show(int id, FormCollection values)             

        {

            try

            {

                RegisteredUser va = GetCurrentUser();           

                if (va != null)

                {

                    var cm = new Comment();                               

                    cm.VideoID = id;                                      

                    cm.Content = values["Content"];                       

                    if (CommentBLL.AddComment(cm) == 1)

                        return PartialView("UCC",

                                           GetPagedCommentsAndRepliesByVideoId(cm.VideoID, 1, CommentPageSize));

                    return Content("0");   

                }

                return Content("-1");

            }

            catch (Exception ex)

            {

                return Content(ex.Message);

            }



        }

------解决方案--------------------