public ActionResult Delete(string ids)
        {
            if (string.IsNullOrEmpty(ids))
            {
                return(Content("对象不能为空"));
            }

            List <int> listId = new List <int>();

            string[] IDList = ids.Split(',');

            foreach (var item in IDList)
            {
                listId.Add(int.Parse(item));
            }

            //UserInfoBLL.Delete();
            UserInfoBLL.DeleteList(listId);

            return(Content("ok"));
        }