Javascript 第一个元素在引导中未折叠

我正在使用引导折叠。我正在尝试折叠第一个元素，但它不起作用。这是我的代码

<li class="c-bg-before-yellow list-group-item c-dropdown" style="font-size: 16px;font-weight:500;">
    <a class="analytics collapsed" role="button" data-toggle="collapse" href="#collapseExample" aria-expanded="false" aria-controls="collapseExample">AUDIT &amp; ASSURANCE</a>
    <div class="collapse" id="collapseExample" aria-expanded="false" style="height: 0px;">
        <ul class="c-dropdown-menu c-content-list-1 c-theme  c-square listsss">
            <li class="c-bg-before-yellow">
                <a href="external_audits.php" class="">External Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="internal_audits.php" class=" ">Internal Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="rera_audits.php" class=" ">RERA Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="agreed_upon_procedures.php" class=" ">Agreed Upon Procedures</a>
            </li>
        </ul>
    </div>
</li>

默认情况下，它将自动展开。您需要使用手风琴

<ul>
<li  class="accordion" id="accordion2">
    <div class="accordion-group">
        <div class="accordion-heading"> <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2"
            href="#collapseOne">  
            AUDIT &amp; ASSURANCE
         </a> 
        </div>
        <div id="collapseOne" class="accordion-body collapse in">
            <div class="accordion-inner">
              <ul class="c-dropdown-menu c-content-list-1 c-theme  c-square listsss">
            <li class="c-bg-before-yellow">
                <a href="external_audits.php" class="">External Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="internal_audits.php" class=" ">Internal Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="rera_audits.php" class=" ">RERA Audits</a>
            </li>
            <li class="c-bg-before-yellow">
                <a href="agreed_upon_procedures.php" class=" ">Agreed Upon Procedures</a>
            </li>
        </ul>
            </div>
        </div>
    </div>
</<li>
</ul>

你说的“第一个元素没有崩溃”是什么意思？我刚刚测试了你的代码，看起来不错。它不起作用。你有没有检查页面加载时我需要展开第一个链接内容？你说的是id为collapseexaple的整个div元素？还是第一个链接“外部审核”“。请更新您的问题。您希望看到什么作为输出。