public ActionResult Create(UserInfo userinfo)
        {
            if (ModelState.IsValid)
            {
                //图片
                var file = Request.Files[0];
                var img = MyHelper.fileSaveAs(file, 0, 2);
                if (img.IndexOf("UpFile") > -1)
                {
                    userinfo.HeadImage = img;
                }
                db.UserInfo.Add(userinfo);
                db.SaveChanges();
                return RedirectToAction("Login");
            }

            return View(userinfo);
        }
        public ActionResult Reg(UserInfo userinfo)
        {
            bool isOk = ModelState.IsValid;//会加入验证码验证

            if (!isOk)
            {
                ModelState.AddModelError("", "Code Error!");
                return View(userinfo);
            }
            else
            {
                db.UserInfo.Add(userinfo);
                db.SaveChanges();
                return RedirectToAction("Login");
            }
        }
 public ActionResult Edit(UserInfo userinfo)
 {
     if (ModelState.IsValid)
     {
         //图片
         var file = Request.Files[0];
         var img = MyHelper.fileSaveAs(file, 0, 2);
         if (img.IndexOf("UpFile") > -1)
         {
             userinfo.HeadImage = img;
         }
         db.Entry(userinfo).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(userinfo);
 }