python使用datetime模块timedelta实现日期时间相加:
python计算明天的日期:
from datetime import datetime
from datetime import timedelta
now = datetime.now()
aDay = timedelta(days=1)
now = now + aDay
print(now.strftime('%Y-%m-%d'))
python计算昨天时间:
from datetime import datetime
from datetime import timedelta
now = datetime.now()
aDay = timedelta(days=-1)
now = now + aDay
print(now.strftime('%Y-%m-%d'))
使用timedelta可以很方便的在日期上做天days,小时hour,分钟,秒,毫秒,微妙的时间计算,如果要计算月份则需要另外的办法
计算上个月的月份
import time
last_month = time.localtime()[1]-1 or 12 #减去几就是上几个月
print(last_month)