如何写正则式匹配css的引用链接？

[Clothos]

例如下面这段js代码，怎么用正则从其中找出http://ads.sina.com/cnNews/css/cnNews.css这个链接？

browser = navigator.appName;
ie = "Microsoft Internet Explorer";
netscape = "Netscape";
os = navigator.platform;
mac = 'MacPPC'

if (browser == netscape && os != mac) {
document.write('<link rel="stylesheet" type="text/css" href="http://ads.sina.com/cnNews/css/cnNews.css" title="master">');
}
else if (browser == ie && os != mac) {
document.write('<link rel="stylesheet" type="text/css" href="http://ads.sina.com/cnNews/css/cnNews.css" title="master">');
}
else if (browser == netscape && os == mac) {
document.write('<link rel="stylesheet" type="text/css" href="http://ads.sina.com/cnNews/css/cnNews.css" title="master">');
}
else if (browser == ie && os == mac) {
document.write('<link rel="stylesheet" type="text/css" href="http://ads.sina.com/cnNews/css/cnNews.css" title="master">');
}

[yufenfeila]

试试
string pattern = @"http://.*?\.css";
Regex regex = new Regex(pattern, RegexOptions.Singleline);
foreach (Match m in regex.Matches(str))
{
MessageBox.Show(m.Value);
}

[mobydick]

string yourStr = ......;
MatchCollection mc = Regex.Matches(yourStr, "<link\\s+rel=\"stylesheet\"\\s+type=\"text/css\"\\s+href=\"(?<url>.+?)\".+?>", RegexOptions.IgnoreCase);
foreach(Match m in mc)
{
m.Groups["url"].Value;//http://ads.sina.com/cnNews/css/cnNews.css
}

[Clothos]

谢谢你们两位高手。。。

我用了逐字扫描判断来实现了，不过仍然很感谢两位！