我有一个这样的 ul:
<ul class = "abc">
<li>
<span class = "X">
<a href="" title="alpha">alpha</a>
</span>
<span class = "Y">
</span>
<span class = "Z">
</span>
</li>
<li>
<span class = "X">
<a href="" title="beta">beta</a>
</span>
<span class = "Y">
</span>
<span class = "Z">
</span>
</li>
</ul>
在类为 abc 的 ul 中,我想选择具有 title="alpha" 的 li。我怎样才能使用 jquery 做到这一点?