private void button1_Click(object sender, EventArgs e)
        {
           timer1.Enabled = true;
            timer1.Interval = 1000;
        }
           private void timer1_Tick(object sender, EventArgs e)
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                if (response.StatusCode != HttpStatusCode.OK)
                {
                    MessageBox.Show("连接失败");
                    response.Close();
                    return;
                }
            }
        }
    uri为拍拍连接时正常,浏览量会增加 比如:http://auction1.paipai.com/3736AB040000000000373A4B0705391B)
  但换成淘宝商品地址就没有效果。。比如:http://item.taobao.com/item.htm?id=3992459300
   怎么回事呢,要怎么写代码?我试了手动刷新是可以的