当我点击li标签中的锚点时,我想要确定它前面的h3标签的索引。例如,如果我点击“概述”,我想要获取“介绍”的索引。如何使用Jquery实现这一点?
<h3><a href="Introduction" rel="address:/Introduction">Introduction</a></h3>
<div class="navigation primary_navigation">
<ul>
<li><a href="purpose" rel="address:/purpose">Purpose</a></li>
<li><a href="overview" rel="address:/overview">Overview</a></li>
</ul>
</div>
<h3><a href="Incorporate_Learning" rel="address:/Incorporate_Learning">Incorporate Learning</a></h3>
<div class="navigation primary_navigation">
<ul>
<li><a href="appraise" rel="address:/appraise">Appraise</a></li>
<li><a href="select" rel="address:/select">Select</a></li>
<li><a href="define" rel="address:/define">Define</a></li>
<li><a href="execute" rel="address:/execute">Execute</a></li>
<li><a href="resources" rel="address:/resources">Resources</a></li>
</ul>
</div>