从熊猫“ to_datetime”获得的两个时间戳为6分钟的时间增量,当差异为负时会产生奇怪的结果:
import datetime
import pandas as pd
a=pd.to_datetime('2017-04-03T14:06:00+01:00')
b=pd.to_datetime('2017-04-03T14:00:00+01:00')
print(a-b)
print(b-a)
Timedelta('0 days 00:06:00')
Timedelta('-1 days +23:54:00')
第二个结果应该是“ 0天-00:06:00”,不是吗?