public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
            List<string> language = Common.XMLHelper.GetValueAll_();
            foreach (string str in language)
            {
                routes.MapRoute(Guid.NewGuid().ToString().Substring(0, 5), "{languages}", new { controller = "Book", action = "Index", languages = str });
            }
            routes.MapRoute(
                "Default", // 路由名称
                "{controller}/{action}/{id}", // 带有参数的 URL
                new { controller = "Book", action = "Index", id = UrlParameter.Optional } // 参数默认值
            );

        }