我寫了個登錄的post方法[HttpPost]public ActionResult AdminLogin(string UserName, string Password){if (tbuserBll.ValidateUser(UserName, Password) == 0){Session["userid"] = tbuserBll.GetUserIDbyUserName(UserName);Session["username"] = UserName;return RedirectToAction("Show", "Admin");}else if (tbuserBll.ValidateUser(UserName, Password) == 2){Response.Write("<script>alert('該賬號已被封停')</script>");return View("AdminLogin");}else{Response.Write("<script>alert('賬號或密碼錯誤')</script>");return View("AdminLogin");}我想在母版頁中顯示出 歡迎您***用戶，怎么弄？而且我如果要在 show頁面 調用session的值 為什么非要用return RedirectToAction("Show", "Admin");而不能用return View（"Show"）;