python的datetime举例_Python datetime.timedelta()用法及代码示例

Python timedelta()函数存在于datetime库中，该函数通常用于计算日期差，也可以用于Python中的日期操作。这是执行日期操作的最简单方法之一。

用法： datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0)

返回值：日期

代码1：

# Timedelta function demonstration

from datetime import datetime, timedelta

# Using current time

ini_time_for_now = datetime.now()

# printing initial_date

print ("initial_date", str(ini_time_for_now))

# Calculating future dates

# for two years

future_date_after_2yrs = ini_time_for_now + \

timedelta(days = 730)

future_date_after_2days = ini_time_for_now + \

timedelta(days = 2)

# printing calculated future_dates

print('future_date_after_2yrs:', str(future_date_after_2yrs))

print('future_date