擅长:python、mysql、java
<h3><a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.join.html" rel="nofollow noreferrer">^{<cd1>}</a>+<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.pop.html" rel="nofollow noreferrer">^{<cd2>}</a></h3>
<p>加入由列表列表构造的数据帧:</p>
<pre><code>df = df.join(pd.DataFrame(df.pop('item').values.tolist()).add_prefix('item'))
</code></pre>
<h3>示例</h3>
<pre><code># data from @cronoik
data = [('Construction',[28,0,7216825], 'tools')]
labels = ['category', 'item', 'subcategory']
df = pd.DataFrame.from_records(data, columns=labels)
df = df.join(pd.DataFrame(df.pop('item').values.tolist()).add_prefix('item'))
print(df)
category subcategory item0 item1 item2
0 Construction tools 28 0 7216825
</code></pre>