答案：   /// <summary>        /// 设置301跳转        /// </summary>        /// <param name="Url">要跳转的URL</param>        public static void SetURL301(string Url)        {            System.Web.HttpContext.Current.Response.Clear();            System.Web.HttpContext.Current.Response.StatusCode = 301;            System.Web.HttpContext.Current.Response.Status = "301 Moved Premanet";            System.Web.HttpContext.Current.Response.AddHeader("Location", Url);        }        //在你的页面pageload事件中编写就可了，如果有其他的需要，自行解决哦