Without saying much nonsense, it's all in the code, just upload it
JS code:
The code copy is as follows:
<html>
<head>
<script language="javascript">
var a='<P><A href=/'~abc/ccg/ab.jpg/'>text</A><A style="color:#ddd; font-weight:bold;" mm_href="http:www.baidu.com" href="http://bbs.cn.yimg.com/user_img/200701/31/soso1.jpg" mce_href="http://bbs.cn.yimg.com/user_img/200701/31/jisuanji986_117025184198149.jpg">cc</A> href="www.baidu.com" cbas <span>cchref</span> 1<a dd href="ccc" <A href="http://bbs.cn.yimg.com/user_img/200701/31/soso2.jpg" mce_href="http://bbs.cn.yimg.com/user_img/200701/31/cc.jpg"></A></P>';
var b=/<a([/s]+|[/s]+[^<>]+[/s]+)href=(/"([^<>"/']*)/"|/'([^<>"/']*)/')[^<>]*>/gi;
var s=a.toLowerCase().match(b);
alert(s.length);
for(var i= 0;i<s.length;i++)
{
var ss = s[i].toLowerCase().match(b);
alert(RegExp.$3+RegExp.$4);
}
</script>
</head>
<body>
</body>
</html>
C# code:
The code copy is as follows:
string html = "<P><A href='~abc/ccg/ab.jpg' height=/"4/" width='3' >text</A><A width=/"4/" style=/"color:#ddd; font-weight:bold;/" mm_href=/"http:www.baidu.com/" href=/"http://bbs.cn.yimg.com/user_img/200701/31/soso1.jpg/" mce_href=/"http://bbs.cn.yimg.com/user_img/200701/31/jisuanji986_117025184198149.jpg/">cc</A> href=/"www.baidu.com/" cbas <span>cchref</span> 1<a df href=/"cc/" <A width=/"5/" href=/"http://bbs.cn.yimg.com/user_img/200701/31/soso2.jpg/" mce_href=/"http://bbs.cn.yimg.com/user_img/200701/31/cc.jpg/"></A></P>";
Regex reg = new Regex("<a([//s]+|[//s]+[^<>]+[//s]+)href=(/"(?<href>[^<>/"']*)/"|'(?<href>[^<>/"']*)')[^<>]*>", RegexOptions.IgnoreCase);
MatchCollection matchCollection = reg.Matches(html);
MessageBox.Show(matchCollection.Count.ToString());
foreach (Match match in matchCollection)
{
MessageBox.Show(match.Groups["href"].ToString());
}
Have you understood the similarities and differences of using regular expressions in js and C#? If you have any questions, please leave a message and discuss together.