python——日曆

 1 #!/usr/bin/env/ python3
 2 # -*- codinf: utf-8 -*-
 3 # year: 2018
 4 # day: 138
 5 # --> XX/XX
 6 # year: 2000
 7 # day: 63
 8 # --> 03/03
 9 # year: 2014
10 # day: 63
11 # --> 03/04
12 def is_leap_year(year): 13     if year % 100 != 0: 14        if year % 4 == 0: 15           return 1
16     else: 17        if year % 400 == 0: 18           return 1
19     return 0 20 
21 def get_days_by_year_month(year,month): 22     days = [ # 01 02 03 04 05 06 07 08 09 10 11 12
23               [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], 24               [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], 25  ] 26     return days[is_leap_year(year)][month-1] 27 
28 def get_month_day_by_year_days(year, days): 29     month, day = 1, 1
30     ###
31     while True: 32         d = get_days_by_year_month(year, month) 33         if days <= d: 34            day = days 35            break
36         days -= d 37         month += 1
38     ###
39 
40     return month, day 41 def get_days_by_year_month_day(year, month, day): 42     # 2018/3/18 --> 31+28+18
43     days = day 44     for i in range(1, month): 45         days += get_days_by_year_month(year, i) 46     return days 47 
48 if __name__ == '__main__': 49     year  = int(input('year: ')) 50     month = int(input('month: ')) 51     day   = int(input('day: ')) 52     days  = get_days_by_year_month_day(year, month, day) 53     print('%d/%02d/%02d --> %dday(s) in %d year.' %(year, month, day, days, year)) 54     days  = int(input('day: ')) 55     month, day = get_month_day_by_year_days(year, days) 56     print('%d of %d --> %02d/%02d' %(days, year, month, day))

執行結果：

能夠查詢2018年開始到指定日期過去多少天，也能夠用天數來查詢日期
[root@lpc 05-4-日曆]# python3 rili.py 
year:  2018
month: 5
day:   27
2018/05/27 --> 147day(s) in 2018 year.
day: 148
148 of 2018 --> 05/28