public void Grab_ProxyIp(ConcurrentQueue <string> proxyIpQueue)
        {
            HashSet <string> proxyIp = new HashSet <string>();

            HttpHelper http = new HttpHelper();
            HttpItem   para = new HttpItem();

            para.Timeout = 1000 * 10;
            para.Method  = "GET";

            int count = 0;

            para.Url = "http://www.xicidaili.com/nn/1"; // 西刺
            RetryFunc(() =>
            {
                HttpResult result = http.GetHtml(para);
                if (result.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    string regex = @"<td>(\d+\.\d+\.\d+\.\d+)</td>\s+<td>(\d+)</td>";
                    Match mstr   = Regex.Match(result.Html, regex);
                    while (mstr.Success && count < 20)
                    {
                        proxyIp.Add(mstr.Groups[1].Value + ":" + mstr.Groups[2].Value);
                        mstr = mstr.NextMatch();
                        count++;
                    }

                    return(true);
                }
                else
                {
                    return(false);
                }
            }, 10);

            count    = 0;
            para.Url = "http://ip84.com/dlgn"; // IP巴士
            RetryFunc(() =>
            {
                HttpResult result = http.GetHtml(para);
                if (result.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    string regex = @"<td>(\d+\.\d+\.\d+\.\d+)</td>\s+<td>(\d+)</td>";
                    Match mstr   = Regex.Match(result.Html, regex);
                    while (mstr.Success && count < 10)
                    {
                        proxyIp.Add(mstr.Groups[1].Value + ":" + mstr.Groups[2].Value);
                        mstr = mstr.NextMatch();
                        count++;
                    }

                    return(true);
                }
                else
                {
                    return(false);
                }
            }, 10);

            count    = 0;
            para.Url = "http://www.ip3366.net/free/?stype=1"; // 云代理
            RetryFunc(() =>
            {
                HttpResult result = http.GetHtml(para);
                if (result.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    string regex = @"<td>(\d+\.\d+\.\d+\.\d+)</td>\s+<td>(\d+)</td>";
                    Match mstr   = Regex.Match(result.Html, regex);
                    while (mstr.Success && count < 10)
                    {
                        proxyIp.Add(mstr.Groups[1].Value + ":" + mstr.Groups[2].Value);
                        mstr = mstr.NextMatch();
                        count++;
                    }

                    return(true);
                }
                else
                {
                    return(false);
                }
            }, 10);

            count    = 0;
            para.Url = "http://www.iphai.com/free/ng"; // IP海
            RetryFunc(() =>
            {
                HttpResult result = http.GetHtml(para);
                if (result.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    string regex = @"<td>\s+(\d+\.\d+\.\d+\.\d+)\s+</td>\s+<td>\s+(\d+)\s+</td>";
                    Match mstr   = Regex.Match(result.Html, regex);
                    while (mstr.Success && count < 10)
                    {
                        proxyIp.Add(mstr.Groups[1].Value + ":" + mstr.Groups[2].Value);
                        mstr = mstr.NextMatch();
                        count++;
                    }

                    return(true);
                }
                else
                {
                    return(false);
                }
            }, 10);

            count    = 0;
            para.Url = "http://www.66ip.cn/nmtq.php?getnum=10&isp=0&anonymoustype=3&start=&ports=&export=&ipaddress=&area=1&proxytype=2&api=66ip"; // 66ip
            RetryFunc(() =>
            {
                HttpResult result = http.GetHtml(para);
                if (result.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    string regex = @"(\d+\.\d+\.\d+\.\d+):(\d+)<br/>";
                    Match mstr   = Regex.Match(result.Html, regex);
                    while (mstr.Success && count < 10)
                    {
                        proxyIp.Add(mstr.Groups[1].Value + ":" + mstr.Groups[2].Value);
                        mstr = mstr.NextMatch();
                        count++;
                    }

                    return(true);
                }
                else
                {
                    return(false);
                }
            }, 10);

            foreach (var item in proxyIp)
            {
                proxyIpQueue.Enqueue(item);
            }
        }