public static string[] GetHtmlUrlList(string sHtmlText)
{
// 定义正则表达式用来匹配 img 标签
Regex regImg = new Regex(@"]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[" "']?[\s\t\r\n]*(?[^\s\t\r\n""']*)[^]*?/?[\s\t \r\n]*>", RegexOptions.IgnoreCase);
// 搜索匹配的字符串
MatchCollection matches = regImg.Matches(sHtmlText);
int i = 0;
string[] sUrlList = new string[matches.Count];
// 取得匹配项列表
foreach (Match match in matches)
sUrlList[i++] = match.Groups["imgUrl"].Value;
return sUrlList;
}