//账号登录验证 public ActionResult Login(string ID, string pass) { accountService accountS = new accountService(); RegisterService registerService = new RegisterService(); if (ID == null || pass == null) { return(Json(null)); } AccountDTO accountDTO = accountS.Login(ID, pass); if (accountDTO != null) { registerService.Update(ID); return(Json(accountDTO)); } else { return(Json(null)); } }