an><span style="--shiki-dark:#79B8FF;--shiki-light:#005CC5;"> number</span><span style="--shiki-dark:#E1E4E8;--shiki-light:#24292E;">;</span></span>
<span class="line"><span style="--shiki-dark:#E1E4E8;--shiki-light:#24292E;">}</span></span></code></pre></div><h2 id="引擎拓展" tabindex="-1">引擎拓展 <a class="header-anchor" href="#引擎拓展" aria-label="Permalink to &quot;引擎拓展&quot;">​</a></h2><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><sp