擅长:python、mysql、java
<p>可以在<code>truthDict.keys()</code>周围使用<code>list()</code></p>
<pre class="lang-py prettyprint-override"><code>pick = random.choice(list(truthDict.keys()))
truthDict[pick] = not(truthDict[pick])
</code></pre>
<blockquote>
<p>time: ~5.72 µs</p>
</blockquote>
<hr/>
<p>或者使用<code>*</code>解包</p>
<pre class="lang-py prettyprint-override"><code>pick = random.choice([*(truthDict.keys())])
truthDict[pick] = not(truthDict[pick])
</code></pre>
<blockquote>
<p>time: ~4.53 µs</p>
</blockquote>