擅长:python、mysql、java
<p>我认为gcd在3.9中被转移到了数学包中。见<a href="https://docs.python.org/3/library/fractions.html" rel="nofollow noreferrer">https://docs.python.org/3/library/fractions.html</a></p>
<blockquote>
<p>Changed in version 3.9: The math.gcd() function is now used to normalize the numerator and denominator. math.gcd() always return a int type. Previously, the GCD type depended on numerator and denominator.</p>
</blockquote>
<p>我建议您使用3.8创建一个虚拟环境并尝试一下。有很多关于如何做到这一点的教程</p>