python regular matches the contents of the specified start HTML tag and end tag
<div class="pbm mbm bbda cl">
<h2 class="mbn"></h2>
<a href="http://bbs.aa.cc/home.php?mod=spacecp&ac=profile&op=verify&vid=1" target="_blank"><img src="http://bbs.aa.cc/data/attachment/common/c4/common_1_verify_icon.png" class="vm" alt="" title="" /></a>
</div>
<div class="pbm mbm bbda cl">
<h2 class="mbn"></h2>
<ul>
<li> <em class="xg1"></em><span style="color:-sharpFF0000"><a href="http://bbs.aa.cc/home.php?mod=spacecp&ac=usergroup&gid=21" target="_blank"><font color="-sharpFF0000"></font></a></span> </li>
<li><em class="xg1"></em></li>
</ul>
<ul id="pbbs" class="pf_l">
<li><em></em>28 </li>
<li><em></em>2017-7-16 18:00</li>
<li><em></em>2018-6-26 18:00</li>
<li><em></em>2018-6-15 19:06</li>
<li><em></em>2018-5-26 18:11</li>
<li><em></em></li>
</ul>
</div> how does the python regular match the second div
I want this piece
<div class="pbm mbm bbda cl">
<h2 class="mbn"></h2>
<ul>
<li> <em class="xg1"></em><span style="color:-sharpFF0000"><a href="http://bbs.aa.cc/home.php?mod=spacecp&ac=usergroup&gid=21" target="_blank"><font color="-sharpFF0000"></font></a></span> </li>
<li><em class="xg1"></em></li>
</ul>
<ul id="pbbs" class="pf_l">
<li><em></em>28 </li>
<li><em></em>2017-7-16 18:00</li>
<li><em></em>2018-6-26 18:00</li>
<li><em></em>2018-6-15 19:06</li>
<li><em></em>2018-5-26 18:11</li>
<li><em></em></li>
</ul>
</div>