Question

求个python 小程序~

输入一个日期判断其合法性，并显示是一年中的第几天。

Answer 1

import datetime
year=int(raw_input('Year:'))
month=int(raw_input('Month:'))
day=int(raw_input('Day:'))
try:
    aDate = datetime.datetime(year,month,day)
    first = datetime.datetime(year,1,1)
    print "Date is valid.  It is ",(aDate-first).days," of the year"
except ValueError:
    print "Date is invalid"