昨天,時(shí)間格式Y(jié)YYY-MM-DD
(datetime.datetime.now() + datetime.timedelta(days=-1)).strftime('%Y-%m-%d')
循環(huán)
start = arrow.get('2017-09-01').datetime
end = arrow.now().datetime
print start, end
for i in arrow.Arrow.span_range('month', start, end):
