如何在Pandas中访问列中的JSON？

import pandas as pd
import json

data = {'id': [1, 2, 3],
        'info': ['{"name": "John", "age": 30}', '{"name": "Alice", "age": 25}', '{"name": "Bob", "age": 35}']}
df = pd.DataFrame(data)

df['info_dict'] = df['info'].apply(json.loads)

# 访问name字段
df['info_dict'].apply(lambda x: x['name'])