访问网络的五句代码

                System.Net.WebRequest wr = System.Net.WebRequest.Create(url);
                wr.Timeout = 1000;
                System.Net.WebResponse wrp = wr.GetResponse();
                System.IO.StreamReader reader =  new System.IO.StreamReader(wrp.GetResponseStream(), Encoding.GetEncoding("gb2312"));
                 return reader.ReadToEnd();