public ActionResult Login(string user_id, string password)
{
ActionResult actionResult = null;
if (user_id == password)
{
authInfo.SignIn(user_id);
actionResult = RedirectToAction("Index", "Home");
}
else
{
ModelState.AddModelError(string.Empty, "驗證錯誤 - 帳號與密碼必須相同：)");
actionResult = View();
}
return(actionResult);
}