擅长:python、mysql、java
<blockquote>
<p>I was surprised to see that this particular operation does not exist in Python!</p>
</blockquote>
<p>我不熟悉任何有这个接线员的语言。根本不需要。</p>
<p>至于你的片段:</p>
<p><code>if a == 0 or a > 0</code></p>
<p>它与<code>if a >= 0</code>完全相同</p>