学步园

        public static MatchCollection getAllHyperLinks(String text,String s,string e)
        {
            try
            {
                Regex rg = new Regex("(?<=(" + s + "))[.\\s\\S]*?(?=(" + e + "))", RegexOptions.Multiline | RegexOptions.Singleline);
                MatchCollection matches=rg.Matches(text);
                return matches;
            }
            catch (Exception ex)
            {
                return null;
            }
        }