/// <summary>

    /// Post发送图片数据

    /// </summary>

    public Queusresult requestData(string uri, string imgUrl, List<dataModes> ListMode, Encoding en, CookieContainer cook)

    {

        HttpWebRequest req = WebRequest.Create(uri) as HttpWebRequest;

        req.Method = "POST";

        req.ContentType = "application/octet-stream";
　　　　 //一些不需要的请求头 如果去掉不影响久尽量去掉

        // req.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";

        req.CookieContainer = cook;

        req.AllowAutoRedirect = true;

        
　　　　　//可能post了其他参数需要跟图片拼接，我这里没有 所以注释了

        //StringBuilder postData = new StringBuilder("");

        //foreach (dataModes m in ListMode)

        //{

        //    postData.AppendFormat("{0}={1}&", m.keys, m.values);

        //}

        //postData.AppendFormat("{0}={1}", "1", "1");

        //Byte[] writData = ASCIIEncoding.ASCII.GetBytes(postData.ToString());

        //读取图片

        FileStream oStream = new FileStream(imgUrl, FileMode.Open, FileAccess.Read);

        BinaryReader oReader = new BinaryReader(oStream);

        Byte[] imgData = oReader.ReadBytes(Convert.ToInt32(oStream.Length));

        //byte[] data3 = new byte[writData.Length + imgData.Length];

        //System.Array.Copy(writData, 0, data3, 0, writData.Length);

        //System.Array.Copy(imgData, 0, data3, writData.Length, imgData.Length);

        req.ContentLength = imgData.Length;

        Stream stream = req.GetRequestStream();

        stream.Write(imgData, 0, imgData.Length);

        stream.Close();

        HttpWebResponse response = req.GetResponse() as HttpWebResponse;

        Stream str = response.GetResponseStream();

        string html = "";

        using (StreamReader strRead = new StreamReader(str, en))

        {

            req.CookieContainer.Add(response.Cookies);

            html = strRead.ReadToEnd();

        }

        Queusresult q = new Queusresult();

        q.html = html;

        q.cookie = cook;

        return q;