擅长:python、mysql、java
<p>使用<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.json_normalize.html" rel="nofollow noreferrer">^{<cd1>}</a>:</p>
<pre><code>In [40]: pd.concat([df['fileName'], pd.json_normalize(df['col1'])],axis=1)
Out[40]:
fileName key1 key2 key3
0 file_01 value1a value1b NaN
1 file_02 value2a value2b value2c
2 file_03 value3a NaN value3c
</code></pre>