public bool TryGet(int id, out ordinaryuser user)
 {
     user = db.ordinaryuser.Find(id);
     if (user != null)
     {
         return(true);
     }
     else
     {
         return(false);
     }
 }
        public bool UpdateStu(int id, ordinaryuser user)
        {
            var result = db.ordinaryuser.Where(s => s.ID == id).FirstOrDefault <ordinaryuser>();

            if (result != null)
            {
                result.IDCard      = user.IDCard;
                result.PhoneNumber = user.PhoneNumber;
                result.Pwd         = user.Pwd;
                result.RealName    = user.RealName;
                db.SaveChanges();
                return(true);
            }
            else
            {
                return(false);
            }
        }
 public ordinaryuser AddStu(ordinaryuser user)
 {
     user = db.ordinaryuser.Add(user);
     db.SaveChanges();
     return(user);
 }