擅长:python、mysql、java
<p>IIUC<code>explode</code>{<cd2>}和<code>set_index</code></p>
<pre><code>df1 = df.set_index('A')['B'].explode().apply(pd.Series).reset_index()
A asset_id another_prop
0 1 aaa 2
1 1 AAA 4
2 2 bbb 3
</code></pre>
<p>或者正如@anky所指出的:</p>
<pre><code>s = df['B'].explode()
df = df[['A']].join(pd.DataFrame(s.tolist(),index=s.index))
print(df)
A asset_id another_prop
0 1 aaa 2
0 1 AAA 4
1 2 bbb 3
</code></pre>