工具类classCalendarUtils:"""日期工具类"""@staticmethoddefdelta_day(delta=0):""":paramdelta:偏移量:return:0今
工具类
class CalendarUtils:
"""
日期工具类
"""
@staticmethod
def delta_day(delta=0):
"""
:param delta: 偏移量
:return: 0今天, 1昨天, 2前天, -1明天 ...
"""
return (datetime.now() + timedelta(days=delta)).strftime('%Y-%m-%d')
@staticmethod
def delta_week(delta=0):
"""
:param delta: 偏移量
:return: 0本周, -1上周, 1下周 ...
"""
now = datetime.now()
week = now.weekday()
_from = (now - timedelta(days=week - 7 * delta)).strftime('%Y-%m-%d')
_to = (now + timedelta(days=6 - week + 7 * delta)).strftime('%Y-%m-%d')
return _from, _to
@staticmethod
def delta_month(delta=0):
"""
:param delta: 偏移量
:return: 0本月, -1上月, 1下月, 下下个月...
"""
def _delta_month(__year, __month, __delta):
_month = __month + __delta
if _month < 1:
delta_year = math.ceil(abs(_month) / 12)
delta_year = delta_year if delta_year else 1
__year -= delta_year
_month = delta_year * 12 + __month + __delta
elif _month > 12:
delta_year = math.floor(_month / 12)
__year += delta_year
_month %= 12
return __year, _month
now = datetime.now()
_from = datetime(*_delta_month(now.year, now.month, delta), 1)
_to = datetime(*_delta_month(_from.year, _from.month, 1), 1) - timedelta(days=1)
return _from.strftime('%Y-%m-%d'), _to.strftime('%Y-%m-%d')
@staticmethod
def delta_year(delta=0):
"""
:param delta: 偏移量
:return: 0今年, -1去年, 1明年 ...
"""
now = datetime.now()
_from = datetime(now.year + delta, 1, 1)
_to = datetime(_from.year + 1, 1, 1) - timedelta(days=1)
return _from.strftime('%Y-%m-%d'), _to.strftime('%Y-%m-%d')
if __name__ == '__main__':
print('当前日期: ', datetime.now())
print('*' * 40)
print('今天: ', CalendarUtils.delta_day())
print('昨天: ', CalendarUtils.delta_day(-1))
print('前天: ', CalendarUtils.delta_day(-2))
print('明天: ', CalendarUtils.delta_day(1))
print('后天: ', CalendarUtils.delta_day(2))
print('*' * 40)
print('本周: ', CalendarUtils.delta_week())
print('上周: ', CalendarUtils.delta_week(-1))
print('下周: ', CalendarUtils.delta_week(1))
print('*' * 40)
print('本月: ', CalendarUtils.delta_month())
print('上月: ', CalendarUtils.delta_month(-1))
print('下月: ', CalendarUtils.delta_month(1))
print('*' * 40)
print('本年: ', CalendarUtils.delta_year())
print('去年: ', CalendarUtils.delta_year(-1))
print('明年: ', CalendarUtils.delta_year(1))
运行结果
当前日期: 2019-06-26 11:01:34.662560 **************************************** 今天: 2019-06-26 昨天: 2019-06-25 前天: 2019-06-24 明天: 2019-06-27 后天: 2019-06-28 **************************************** 本周: ('2019-06-24', '2019-06-30') 上周: ('2019-06-17', '2019-06-23') 下周: ('2019-07-01', '2019-07-07') **************************************** 本月: ('2019-06-01', '2019-06-30') 上月: ('2019-05-01', '2019-05-31') 下月: ('2019-07-01', '2019-07-31') **************************************** 本年: ('2019-01-01', '2019-12-31') 去年: ('2018-01-01', '2018-12-31') 明年: ('2020-01-01', '2020-12-31')
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