public IActionResult AddSort(SortManage model) { if (ModelState.IsValid) { //判断栏目名是否存在 if (!_sort.IsSortExisted(model.AddName)) { _sort.AddSort(model.AddName); ViewBag.AddSuccess = "Success"; return(View("ManageSort")); } else { ViewBag.AddError = "Fail"; return(View("ManageSort")); } } return(View("ManageSort")); }