擅长:python、mysql、java
<p>如果仅将字符串元组作为键,则可以使用:</p>
<pre class="lang-py prettyprint-override"><code>output = [key for tup in mydict for key in tup]
</code></pre>
<p>但由于<code>'wix'</code>是一个键,因此必须测试该键是否为元组:</p>
<pre class="lang-py prettyprint-override"><code>output = [key for tup in mydict for key in (tup if isinstance(tup, tuple) else [tup])]
</code></pre>