擅长:python、mysql、java
<p>你可以通过听写理解:</p>
<pre><code>dicta = {p: g.groupby('item')['store'].apply(tuple).to_dict()
for p, g in df.groupby('period')}
</code></pre>
<p>[输出]</p>
<pre><code>{1: {"'A'": (32, 34), "'B'": (32, 34)}, 2: {"'X'": (42, 44), "'Y'": (42, 44)}}
</code></pre>