public static string GetResult(string url)

        {

            string username = "账户";

            string password = "密码";

            string usernamePassword = username + ":" + password;

            WebRequest webRequest = WebRequest.Create(url);

            HttpWebRequest myReq = webRequest as HttpWebRequest;

            CredentialCache myCache = new CredentialCache();

            myCache.Add(new Uri(url), "Basic", new NetworkCredential(username, password));

            myReq.Credentials = myCache;

            myReq.Headers.Add("Authorization", "Basic " +

            Convert.ToBase64String(new System.Text.ASCIIEncoding().GetBytes(usernamePassword)));

            WebResponse wr = myReq.GetResponse();

            Stream receiveStream = wr.GetResponseStream();

            StreamReader reader = new StreamReader(receiveStream, Encoding.UTF8);

            return reader.ReadToEnd();

        }



        public static string GetResult(string url)

        {

            WebClient client = new WebClient();

            client.Encoding = Encoding.UTF8;

            string str = string.Empty;

            try

            {

                str = client.DownloadString(url);

            }

            catch

            {

                throw;

            }

            finally

            {

                client.Dispose();

            }

            return str;