核心是应用 pd.Series， 具体操作如下：

import pandas as pddata = {'years': [2025],'week': [{f"week_{i}": i for i in range(3)}]}
df = pd.DataFrame(data)
print(df)

df = pd.concat([df, df['week'].apply(pd.Series)], axis=1).drop('week', axis=1)print(df)