python get time difference

1. 使用`datetime`模块获取时间差

from datetime import datetime

获取当前时间
now = datetime.now()

获取特定时间
specific_time = datetime(2021, 12, 1, 10, 30)

计算时间差
time_difference = now - specific_time
print(time_difference)

2. 使用`dateutil.relativedelta`计算更复杂的时间差

from datetime import datetime
from dateutil.relativedelta import relativedelta

获取当前时间
now = datetime.now()

获取特定时间
specific_time = datetime(2021, 12, 1, 10, 30)

计算时间差
time_difference = relativedelta(now, specific_time)
print(time_difference)

3. 使用`timedelta`直接计算时间差

from datetime import datetime, timedelta

获取当前时间
now = datetime.now()

获取特定时间
specific_time = datetime(2021, 12, 1, 10, 30)

计算时间差
time_difference = now - specific_time
print(time_difference)