# -*- coding:utf-8 -*- __author__ = 'gjw' __time__ = '2018/1/4 0004 下午 1:49' # 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： year = int(input('年:')) month = int(input('月:')) day = int(input('日:')) days = (0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334) if 0 < month <= 12: sum = days[month-1] else: print("您输入的月份有误") 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('这一天是:第'+str(sum)+'天') print("我是新版") months1 = (0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366) # 闰年 months2 = (0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365) # 平年 if ((year%4==0)and(year%100!=0)) or (year%400 == 0): date = months1[month-1]+day else: date = months2[month-1]+day print("是该年的第"+str(date)+"天")