您当前的位置: - HTML code
<ul class="vv41Table">
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
</ul>
页面里有这么一个列表，匹配列表里面的a标签！ul外面也会有a标签，但是不匹配，只匹配<ul class="vv41Table">下的a标签
------解决方案--------------------
- C# code
string s = File.ReadAllText(Server.MapPath("~/test.txt"));
MatchCollection matches=Regex.Matches(s, @"(?is)(?<=<ul[^>]+class=""vv41Table""[^>]*>.*?)<a[^>]+>.*?</a>(?=.*?</ul>)");
foreach (Match match in matches)
Response.Write(Server.HtmlEncode(match.Value) + "<br/>");
------解决方案--------------------
<ul class="vv41Table">
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
</ul>
<ul class="vv41Table1">
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
<li class='vv4TableDIV1' >
<span class="vv41A"><a href="../ddddd/sss" target="_blank">********</a></span></li>
</ul>
------------------------------------
这样结果不正确
------解决方案--------------------