CSharp_Task3.Form1.button1_Click C# (CSharp) Метод

        private void button1_Click(object sender, EventArgs e)
        {
            String[] s = getNewsUrl(webCatch("http://today.hit.edu.cn/classList/2.html"));
            for (int i=1;i<=100;i++)
            {
                if (s[i-1] == null)
                    continue;
                try
                {
                    Random r = new Random();
                    String url = getCommendUrl( webCatch(s[i-1]));
                    if (url == null)
                        continue;
                    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
                    req.Method = "GET";
                    req.Headers["X-Forwarded-For"] = "202." + r.Next(256) + "." + r.Next(256) + "." + r.Next(256);
                    req.Timeout = 2000;
                    req.GetResponse().Close();
                    label2.Text = "第" + i + "条新闻刷票成功";
                    this.Refresh();
                }
                catch (Exception exc)
                {
                    label2.Text = "第" + i + "条新闻刷票失败";
                    this.Refresh();
                }
                //Thread.Sleep(1000);
            }
        }