string html = “html代码”;        Regex reg = new Regex(@"(?is)
     
      ]*?href=(['""]?)(?
      
       [^'""\s>]+)\1[^>]*>(?
       
        (?:(?!
        ");        MatchCollection mc = reg.Matches(html);foreach (Match m in mc)        {            string url = m.Groups["url"].Value;            string text = m.Groups["text"].Value;        }