HttpWebRequest的问题,求大神指点，在线等

[qiouqfz]

		private void button1_Click(object sender, EventArgs e)
        {
                Thread.Sleep(1000);
                Thread threadstart = new Thread(new ThreadStart(Html_start));
                threadstart.IsBackground = true;
                threadstart.Start();    
        }
		private void Html_start()
        {

            QQHtml qqhtml = new QQHtml();
            richTextBox2.AppendText("正在申请");
            System.Timers.Timer timer = new System.Timers.Timer(1500);
            timer.Elapsed += new System.Timers.ElapsedEventHandler(Text_add);
            timer.AutoReset = true;
            timer.Enabled = true;


            qqhtml.Get_ver_js();
            Thread.Sleep(200);
            qqhtml.attr_id_252190();
            Thread.Sleep(200);
            qqhtml.CookieCode_undefined();
            Thread.Sleep(200);
			..........
			
		}

直接打开程序，http请求发送不出去，但是我把抓包工具Fiddler打开,请求就能发送出去,是什么原因

[willhuo]

好像是代理的问题吧，fiddler应用了代理