擅长:python、mysql、java
<p>您应该使用<a href="https://docs.python.org/3/library/functions.html#getattr" rel="nofollow noreferrer">[Python 3.Docs]: Built-in Functions - <strong>getattr</strong>(<em>object, name[, default]</em>)</a>,而不是<code>x.attribut</code>(其中<em>attribute</em>是一个字符串,<em>x</em>是一个<em>Djur</em>实例):</p>
<pre class="lang-py prettyprint-override"><code>djurlista.sort(key=lambda x: getattr(x, attribut))
</code></pre>