public List<string[]> GetUrl()

         {

             try

             {

                 string url = "http://baijia.baidu.com/";

                 WebRequest webRequest = WebRequest.Create(url);

                 WebResponse webResponse = webRequest.GetResponse();

                 StreamReader reader = new StreamReader(webResponse.GetResponseStream());

                 string result = reader.ReadToEnd();

                 reader.Close();

                 webResponse.Close();

                 return AnalysisHtml(result);

             }

             catch (Exception ex)

             {

                 throw ex;

             }

         }

 public List<string[]> AnalysisHtml(string htmlContent)

         {

             List<string[]> list = new List<string[]>();

             string strPattern = "<h3><a\\s*.*>(?<Title>[^<]+)</a></h3>.*\\s*<p\\s*class=\"feeds-item-text\">(?<Abstract>[^<]+)<a\\s*href=\"(?<Url>.*)\"\\s*target=\"_blank\"\\s*class=\"feeds-item-more\"\\s*mon=\".*\\s*\">.*\\s*</a></p>";

             Regex regex = new Regex(strPattern, RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.CultureInvariant);

             if (regex.IsMatch(htmlContent))

             {

                 MatchCollection matchCollection = regex.Matches(htmlContent);

                 foreach (Match match in matchCollection)

                 {

                     string[] str = new string[];

                     str[] = match.Groups[].Value;//获取到的是列表数据的标题

                     str[] = match.Groups[].Value;//获取到的是内容

                     str[] = match.Groups[].Value;//获取到的是链接到的地址

                     list.Add(str);

                 }

             }

             return list;

         }