在pandas数据帧中减去两个时钟时间

import pandas as pd

# 创建示例数据帧
df = pd.DataFrame({'时间列1': ['2022-01-01 10:00:00', '2022-01-01 12:00:00'],
                   '时间列2': ['2022-01-01 09:30:00', '2022-01-01 11:30:00']})

# 将时间列转换为datetime格式
df['时间列1'] = pd.to_datetime(df['时间列1'])
df['时间列2'] = pd.to_datetime(df['时间列2'])

# 计算时间差
time_diff = df['时间列1'] - df['时间列2']

# 将时间差转换为分钟
time_diff_minutes = time_diff / pd.Timedelta(minutes=1)

# 打印结果
print(time_diff)
print(time_diff_minutes)