// 提取HTML代码中的网址 static ArrayList GetHyperLinks(string htmlCode) 
{ 
ArrayList al = new ArrayList(); string strRegex = @"http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?"; Regex r = new Regex(strRegex, RegexOptions.IgnoreCase); MatchCollection m = r.Matches(htmlCode); for (int i = 0; i <= m.Count - 1; i++) 
{ bool rep = false; string strNew = m[i].ToString(); // 过滤重复的URL foreach (string str in al) { if (strNew == str) { rep = true; break; 
} } if (!rep) al.Add(strNew); } al.Sort(); return al; 
}
