private void button1_Click(object sender, EventArgs e)

        {

            string url = "http://xc.netease.com/logging.php?action=login";



            string path = Environment.CurrentDirectory + @"\list.txt";

            string[] list = System.IO.File.ReadAllText(path).Split('\r');

            Application.DoEvents(); 

            for (int i = 0; i < list.Length; i++)

            {

                string[] arr = list[i].Split('-');

                this.richTextBox1.Text += String.Format("{0}-{1} {2}", arr[0].Trim(), arr[1].Trim(), loginpage(url, arr[0], arr[1])) + Environment.NewLine;

                this.Refresh(1);

            }

            this.richTextBox1.Text += "完成" + Environment.NewLine;

        }





public string loginpage(string url, string uid, string password)

        {

            try

            {

                WebClient wc = new WebClient();

                wc.Headers.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0");

                string downhtml = System.Text.Encoding.GetEncoding("gb2312").GetString(wc.DownloadData(url));



                string formhash = System.Text.RegularExpressions.Regex.Replace(downhtml, "[\\s*\\S*]*<input type=\"hidden\" name=\"formhash\" value=\"([^\"]*)\"[\\s*\\S*]*", "$1", System.Text.RegularExpressions.RegexOptions.IgnoreCase);

                string poststring = String.Format("formhash={0}&referer=index.php&loginfield=uid&username={1}&password={2}&questionid=0&answer=&cookietime=2592000&loginmode=&styleid=&loginsubmit=%CC%E1%BD%BB", formhash, uid, password);



                wc = new WebClient();

                wc.Headers.Add("Accept-Language", "zh-cn");