python判断输入日期为第几天的实例

# -*- coding: utf-8 -*-
# 简述：要求输入某年某月某日
# 提问：求判断输入日期是当年中的第几天？
def which_day(year,month,day):
  list=[31,28,31,30,31,30,31,31,30,31,30,31]
  whichday=0
  if (year%4)==0 and (year%100)!=0 or (year%400)==0:
    list[1]=29
  for i in range(1,month):
    if month == 1:
      print day
    whichday=whichday+list[i-1]
  whichday=whichday+day
  print whichday
 
if __name__ == "__main__":
  year=int(raw_input("请输入年份："))
  month=int(raw_input("请输入月份："))
  day=int(raw_input("请输入天："))
  which_day(year, month, day)