代理ip

1、代理ip分：透明、匿名、高匿

2、设置代理ip

Stopwatch sw = new Stopwatch();
            sw.Start();
            string proxyIP = "125.77.25.116";//"219.153.76.77"; //"210.29.26.250";//"120.26.197.149"; //"112.91.218.21";
            int proxyPort = 80;//8089; //9000;
            WebProxy proxy = new WebProxy(proxyIP, proxyPort);
            HttpWebRequest rq =(HttpWebRequest)WebRequest.Create("http://www.cn357.com/notice165399_CDW3030A1B3");
            rq.Timeout = 1000*10;
            rq.Proxy = proxy;
            string retString = string.Empty;
            using (HttpWebResponse response = (HttpWebResponse)rq.GetResponse())
            {
                Stream myResponseStream = response.GetResponseStream();

                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.Default);
                retString = myStreamReader.ReadToEnd();
                
                myStreamReader.Close();
                myResponseStream.Close();
            }
            sw.Stop();

            Console.WriteLine(proxyIP + ":" + retString.Substring(0, 10)+";"+ sw.Elapsed.TotalSeconds);

3、

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