MVC-起始页面设置

    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Admin", action = "Login", id = UrlParameter.Optional }
            ).DataTokens.Add("Area", "UserManage");
        }
    }