nk to &quot;events&quot;">​</a></h2><table><thead><tr><th>事件名称</th><th style="text-align:center;">含义</th><th style="text-align:right;">参数</th></tr></thead><tbody><tr><td>clickAction</td><td style="text-align:center;">点击展开收起时触发</td><td style="text-align:right;">event</td></tr></tbody></table><h2 id="css-变量" tabindex="-1">css 变量 <a class="header-anchor" href="#css-变量" aria-label="Permalink to &quot;css 变量&quot;">​</a></h2><div class="language-css"><button 