public ActionResult Create([Bind(Include = "Id,Username,Password,Name,Email,Sex,Company,Position,Phone")] Account account)
        {
            if (ModelState.IsValid)
            {
                db.Account.Add(account);
                db.SaveChanges();
                return(RedirectToAction("Index"));
            }

            return(View(account));
        }
 // GET: Home
 public ActionResult Index()
 {
     _db = new CodeFirstModel();
     //_db.Entry(User).State = System.Data.Entity.EntityState.Modified;
     _db.SaveChanges();
     return(View());
 }