import datetime# 获取当前时间d1 = datetime.datetime.now()print d1# 当前时间加上半小时d2 = d1 + datetime.timedelta(hours=0.5)print d2# 格式化字符串输出d3 = d2.strftime('%y-%m-%d %h:%m:%s')print d3# 将字符串转化为时间类型d4 = datetime.datetime.strptime(date,'%y-%m-%d %h:%m:%s.%f')print d4
获取本周和本月第一天的日期：
# -*- coding:utf-8 -*-import datetimedef first_day_of_month(): ''' 获取本月第一天 :return: ''' # now_date = datetime.datetime.now() # return (now_date + datetime.timedelta(days=-now_date.day + 1)).replace(hour=0, minute=0, second=0, # microsecond=0) return datetime.date.today() - datetime.timedelta(days=datetime.datetime.now().day - 1)def first_day_of_week(): ''' 获取本周第一天 :return: ''' return datetime.date.today() - datetime.timedelta(days=datetime.date.today().weekday())if __name__ == __main__: this_week = first_day_of_week() last_week = this_week - datetime.timedelta(days=7) this_month = first_day_of_month() last_month = this_month - datetime.timedelta(days=(this_month - datetime.timedelta(days=1)).day) print this_week print last_week print this_month print last_month
#! /usr/bin/python# coding=utf-8import datetimedatetime的功能强大能支持0001年到9999年当前时间返回的是一个datetime类型now方法有个参数tz，设置时区类型。如果没有和方法today的效果一样now = datetime.datetime.now()#utc时间datetime.datetime.utcnow()attrs = [(year,年),('month',月),(day,日),('hour',小时),( 'minute',分),( 'second',秒),( 'microsecond',毫秒),('min',最小),( 'max',最大),]for k,v in attrs: now.%s = %s #%s % (k,getattr(now, k),v)返回一个time结构now.timetuple() 返回一个date类型now.date()返回一个time类型now.time()当前星期几。星期一是0，星期于是6注意这里是方法，不是属性哦。now.weekday()当前星期几。星期一是1，星期于是7注意这里是方法，不是属性哦。now.isoweekday()修改当前时间。比如修改成当月1号now.replace(day=1)past = datetime.datetime(2010,11,12,13,14,15,16)进行比较运算返回的是timedelta类型now-past转成字符串详细规则见time篇strdatetime = now.strftime(%y-%m-%d %h:%m:%s)字符串生成datetime对象datetime.datetime.strptime(strdatetime, %y-%m-%d %h:%m:%s)
以上所述就是本文的全部内容了，希望大家能够喜欢。