public ActionResult Edit(News news, HttpPostedFileBase img, string[] tags)
        {
            if (ModelState.IsValid)
            {
                var    co  = new FunctionsController();
                var    id  = co.CookieID();
                string tag = "";
                foreach (var item in tags)
                {
                    tag += item + ";";
                }
                news.news_tag = tag;
                news.user_id  = id.user_id;
                news.news_img = images.UpLoadImages(img, news.news_img, "News");
                newsDao.Edit(news);

                return(RedirectToAction("Index"));
            }
            return(View());
        }