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  private string getUrl(string url)

  {    HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);   HttpWebResponse response = (HttpWebResponse)request.GetResponse();   Stream str = response.GetResponseStream();   Encoding ed = Encoding.GetEncoding("GB2312");      StreamReader srd = new StreamReader(str,ed);

   string ss = srd.ReadToEnd();

   string sUrl="";

   Regex r = new Regex(@"- ./?%&=]*)?");

   MatchCollection aryMath = r.Matches(ss);   for(int i=0;i<aryMath.Count;i++)   {     sUrl += aryMath[i].ToString() + "/n";   }   return sUrl;  } 

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