擅长:python、mysql、java
<p>如果要返回多索引结构:</p>
<pre><code> # save MultiIndex indexes names
indexes_names = df.index.names
df.reset_index().to_json('dump.json')
# return back MultiIndex structure:
loaded_df = pd.read_json('dump.json').set_index(indexes_names)
</code></pre>