Evaluates the specified date is the first few days of the year
def is_leap_year(year):
"""
判断指定的年份是不是闰年
:param year:年份
:return:闰年返回True 平年返回False
"""
return year % 4 == 0 and year % 100 != 0 or year % 400 == 0
def which_day(year, month, date):
"""
计算传入的日期是这一年的第几天
:param year: 年
:param month: 月
:param date: 日
:return: 第几天
"""
days_of_month = [
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
][is_leap_year(year)]
total = 0
for index in range(month - 1):
total += days_of_month[index]
return total + date
def main():
print(which_day(1980, 11, 30))
print(which_day(2019, 3, 1))
print(which_day(1998, 1, 7))
print(which_day(2020, 2, 29))
if __name__ == '__main__':
main()
