当前的时间上加一天或一年减一天等操作



#!/usr/bin/env python

# -*- coding:utf-8 -*-

from datetime import datetime,timedelta  

now = datetime.now()  

yestoday = now - timedelta(days=1)  

tommorow = now + timedelta(days=1)  

next_year = now + timedelta(days = 365)