1 方法

               System.Net.WebClient aWebClient = new System.Net.WebClient();

               aWebClient.Encoding = System.Text.Encoding.Default;

               Byte[] pageData = aWebClient.DownloadData(url);

               string nhtml = Encoding.GetEncoding("utf-8").GetString(pageData);

2方法

                System.Net.WebClient aWebClient = new System.Net.WebClient();

                aWebClient.Encoding = System.Text.Encoding.Default;

                string nhtml = aWebClient.DownloadString(goodstidurl);

3方法

               WebBrowser webbrowser = new WebBrowser();

                StreamReader sr = new StreamReader(this.webBTaobao.DocumentStream, Encoding.Default);

                html = sr.ReadToEnd();

                html = html.Replace("\r\n", "");

                html = html.Replace("\n", "");

                html = html.Replace("  ", "");

                html = html.Replace("(", "");

                html = html.Replace(")", "");

                string nurl = Regex.Match(html, "(?<=data-url=\").*?(?=\")").Value;

                //新建一个WebBrowser

                WebBrowser webAddress = new WebBrowser();

                webAddress.Navigate(nurl);

                //等待载入完毕

                while (webAddress.ReadyState < WebBrowserReadyState.Complete) Application.DoEvents();

                StreamReader sraddress = new StreamReader(webAddress.DocumentStream, Encoding.Default);

                jsonaddress = sraddress.ReadToEnd();

4方法

            WebRequest hwr = WebRequest.Create(@"http://item.taobao.com/item.htm?

id=" + row["urlId"].ToString());//向指定Url发出请求

            HttpWebResponse hwp = hwr.GetResponse() as HttpWebResponse;//将hwr对HTTP的请求

            string text;

            StreamReader sr;

            string code = hwp.ContentType;//请求响应得到的内容类型

            //得到编码了

            code = code.Split('=')[1];

            Stream rep = hwp.GetResponseStream();//将请求得到的内容以流的形式读出

            sr = new StreamReader(rep, Encoding.GetEncoding(code));//用指定的字符编码为指定的流初始化