20:闰年的计算方法

#-*- coding:utf-8 -*-
#Question:
# 输入一个年份,输出是否为闰年
#是闰年的条件:
#能被4整除但不能被100整除,或者被400整除的年份都是闰年。
year = int(raw_input("Please input a year : "))


if year%400 ==0:
    print year ,"is a leap-year "
elif year%4==0 and year%100!=0:
    print year ,"is a leap-year "
else:
    print year,"is not a leap-year "

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转载自blog.csdn.net/sinat_18722099/article/details/80573317