Python 练习实例4

2022-03-12  本文已影响0人  loinue

来自菜鸟教程
https://www.runoob.com/python/python-exercise-example4.html
题目:输入某年某月某日,判断这一天是这一年的第几天?

程序分析:以3月5日为例,应该先把前两个月的加起来,然后再加上5天即本年的第几天,特殊情况,闰年且输入月份大于2时需考虑多加一天:

程序源代码:

#!/usr/bin/python3
 
year = int(input('year:\n'))
month = int(input('month:\n'))
day = int(input('day:\n'))
 
months = (0,31,59,90,120,151,181,212,243,273,304,334)
if 0 < month <= 12:
    sum = months[month - 1]
else:
    print ('data error')
sum += day
leap = 0
if (year % 400 == 0) or ((year % 4 == 0) and (year % 100 != 0)):
    leap = 1
if (leap == 1) and (month > 2):
    sum += 1
print ('it is the %dth day.' % sum)

以上实例输出结果为:

year:
2015
month:
6
day:
7
it is the 158th day.

注:这道题虽然看上去比较基础,但是实际做起来还是有几个点需要注意:
1、months 元组的赋值。就需要先定下来
2、对闰年的处理

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