python – 按周,日和年逐月获取
发布时间:2020-11-14 05:49:45  所属栏目:Python  来源:互联网 
            导读: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 12getmonth(13, 42, 2014)# prin
                
                
                
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                         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))
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