任意时间加15天
import datetime
from dateutil.relativedelta import relativedelta
sdate = datetime.datetime.strptime('2019-12-15 23:59:59','%Y-%m-%d %H:%M:%S')
edate = sdate + relativedelta(days=15)
print(edate)
任意时间加15天
import datetime
from dateutil.relativedelta import relativedelta
sdate = datetime.datetime.strptime('2019-12-15 23:59:59','%Y-%m-%d %H:%M:%S')
edate = sdate + relativedelta(days=15)
print(edate)
本文标题：日期加减
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