我想知道你如何通过给予日,周数和年份来获得月份.
例如,如果你有这样的东西
def getmonth(day,week,year):
# by day,week and year calculate the month
print (month)
getmonth(28,52,2014)
# print 12
getmonth(13,42,2014)
# print 10
getmonth(6,2,2015)
# print 1
解决方法
每
interjay’s suggestion：
import datetime as DT
def getmonth(day,year):
for month in range(1,13):
try:
date = DT.datetime(year,month,day)
except ValueError:
continue
iso_year,iso_weeknum,iso_weekday = date.isocalendar()
if iso_weeknum == week:
return date.month
print(getmonth(28,2014))
# 12
print(getmonth(13,2014))
# 10
print(getmonth(6,2015))
# 1