试图制作一个 Perl 脚本来打开一个 HTML 文件并提取<span class="postertrip">标签中包含的任何内容。
示例 HTML：
<table>
<tbody>
<tr>
<td class="doubledash">>></td>
<td class="reply" id="reply2">
<a name="2"></a> <label><input type="checkbox" name="delete" value="1199313466,2" /> <span class="replytitle"></span> <span class="commentpostername"><a href="test">Test1</a></span><span class="postertrip"><a href="test">!AAAAAAAA</a></span> 08/01/03(Thu)02:06</label> <span class="reflink"> <a href="test">No.2</a> </span> <br /> <span class="filesize">File: <a target="_blank" href="test">1199326003295.jpg</a> -(<em>65843 B, 288x412</em>)</span> <span class="thumbnailmsg">Thumbnail displayed, click image for full size.</span><br /> <a target="_blank" test"> <img src="test" width="139" height="200" alt="65843" class="thumb" /></a>
<blockquote>
<p>Test message 1</p>
</blockquote>
</td>
</tr>
</tbody>
</table>
<table>
<tbody>
<tr>
<td …