获取一段html代码img表情包含的src路径

/// <summary>
        /// 获取所有img里面的src路径
        /// </summary>
        /// <param name="sHtmlText"></param>
        /// <returns></returns>
        public static string[] GetHtmlImageUrlList(string sHtmlText)
        {
            Regex regImg = new Regex(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""‘]?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""‘<>]*)[^<>]*?/?[\s\t\r\n]*>");//img在IE里取出是大写 所以在Ie上面用户img替换成大写 或者html代码转换成小写
            MatchCollection matches = regImg.Matches(sHtmlText);
            int i = 0;
            string[] sUrlList = new string[matches.Count];
            foreach (Match match in matches)
            {
                sUrlList[i++] = match.Groups["imgUrl"].Value;
            }
            return sUrlList;
        }