cm-string">&quot;key&quot;</span>); <span class="cm-comment">// &#xC120;&#xD0DD;&#xC801; &#xBB38;&#xC790;&#xC5F4; &#xD0A4;</span>
</code></pre>
<p>&#xC2EC;&#xBC8C;&#xC740; &#xBD88;&#xBCC0;&#xD558;&#xBA70; &#xC720;&#xC77C;&#xD569;&#xB2C8;&#xB2E4;.</p>
<pre><code class="lang-ts"><span class="cm-keyword">let</span> <span class="cm-variable">sym2</span> <span class="cm-operator">=</span> <span class="cm-variable">Symbol</span>(<span class="cm-string">&quot;key&quot;</span>);
<span class="cm-keyword">let</span> 