python判断一个月的天数_Python 输入年月求天数

版权声明：。 https://blog.csdn.net/weixin_43778797/article/details/90243249

year = int(input("请输入年份")) # 输入整型数

month = int(input("请输入月份"))

day = -1

if month >= 1 and month <= 12: # 月份在1~12

if month in (1,3,5,7,8,10,12): # 大月

day = 31

elif month in (4,6,9,11): # 小月

day = 30

else:

# 以下两种情况之一都可以判断是闰年

if year % 400 == 0 or (year % 4 == 0 and year % 100 != 0):

day = 29

else:

day = 28

print("%d年%d月有%d天" % (year, month, day))

else:

print("月份输入有误！")