擅长:python、mysql、java
<p>在这种情况下,我更喜欢<code>dict.fromkeys</code>:</p>
<pre><code>my_f_string = f"dict comprehension {dict.fromkeys(a)}"
</code></pre>
<p>更短更优雅:)</p>
<p>现在:</p>
<pre><code>print(my_f_string)
</code></pre>
<p>输出:</p>
<pre class="lang-none prettyprint-override"><code>dict comprehension {'a': None, 'b': None, 'c': None, 'd': None}
</code></pre>