Pandas:查找在给定两个数据帧的情况下相同的前两个时间戳索引

import pandas as pd

# 创建df1数据帧
df1 = pd.DataFrame({'时间戳': ['2022-01-01 09:00:00', '2022-01-01 09:10:00', '2022-01-01 09:20:00'],
                    '数据1': [10, 20, 30]})

# 创建df2数据帧
df2 = pd.DataFrame({'时间戳': ['2022-01-01 09:10:00', '2022-01-01 09:20:00', '2022-01-01 09:30:00'],
                    '数据2': [40, 50, 60]})

df1['时间戳'] = pd.to_datetime(df1['时间戳'])
df2['时间戳'] = pd.to_datetime(df2['时间戳'])

merged_df = pd.merge(df1, df2, on='时间戳', how='inner')

result = merged_df.head(2)