<p>请尝试:</p>
<pre><code>df = df['raw_data'].apply(pd.Series)
df.info()
</code></pre>
<p>输出</p>
<pre><code> <class 'pandas.core.frame.DataFrame'>
RangeIndex: 20409 entries, 0 to 20408
Data columns (total 20 columns):
agebracket 20409 non-null object
contractedfromwhichpatientsuspected 20409 non-null object
currentstatus 20409 non-null object
dateannounced 20409 non-null object
detectedcity 20409 non-null object
detecteddistrict 20409 non-null object
detectedstate 20409 non-null object
entryid 20409 non-null object
gender 20409 non-null object
nationality 20409 non-null object
notes 20409 non-null object
numcases 20409 non-null object
patientnumber 20409 non-null object
source1 20409 non-null object
source2 20409 non-null object
source3 20409 non-null object
statecode 20409 non-null object
statepatientnumber 20409 non-null object
statuschangedate 20409 non-null object
typeoftransmission 20409 non-null object
dtypes: object(20)
memory usage: 3.1+ MB
</code></pre>