#未优化的代码
1 #输出日历
2 def print_calendar(year,month,date = 1):
3 month_dict = {'1':'January','2':'February','3':'March','4':'April','5':'May','6':'June','7':'July',
4 '8':'August','9':'September','10':'October','11':'November','12':'December'}
5
6 #数字月份转换为字符串,并判断月份和号数是否合法
7 if month in range(1,13) and date in range(1,31):
8 month_str = str(month)
9 if month_str in month_dict:
10 month_str = month_dict[month_str]
11 else:
12 print('月份或号数输入不合法')
13 return -1
14
15 #头部
16 print('%15s%8d'%(month_str,year))
17 print('-'*33)
18 print('Sun Mon Tue Wed Thu Fri Sat')
19
20 #得到每月1号是星期几
21 first_day = get_start_day(year,month,1)
22 #得到此月有多少天
23 month_num = days_of_month(year,month)
24
25 each_day = 0
26 #主体
27 for index in range(1,43):
28
29 if index < first_day + 1:
30 print(' '*5,end = '')
31 else:
32 if (index - 1) % 7 == 0:
33 print('')
34 each_day += 1
35 if each_day > month_num:
36 return False
37 if each_day < 10:
38 if each_day == date:
39 print('%-5s'%('--'),end = '')
40 else:
41 print(' %-4d'%(each_day),end = '')
42 else:
43 if each_day == date:
44 print('%-5s'%('--'),end = '')
45 else:
46 print('%-5d'%(each_day),end = '')
47
48
49 #输入一个年月日，判断是星期几
50 #需要一个比较标准：2010-1-1是星期五
51 #计算当前距离标准过了多少天(total_days % 7 + 5 -1)%7
52 #先遍历年份，是闰年+366，不是+365
53 #再遍历月份，31,30,29,28
54 def get_start_day(year,month,date):
55 total_days = 0
56 #遍历年份
57 for one_year in range(2010,year):
58 if is_leap_year(one_year):
59 total_days += 366
60 else:
61 total_days += 365
62 #print(total_days)
63 #遍历月份
64 for one_month in range(1,month):
65 total_days += days_of_month(year,one_month)
66 #print(total_days)
67 #加上当月号数,则求得总共过了多少天
68 total_days += date
69
70 #求输入的年月日是星期几
71 day = (total_days % 7 + 5 - 1) % 7
72
73 #print(total_days)
74 #print(day)
75 return day
76
77 #输入一个年份和月份，输出这月有多少天
78 #1,3,5,7,8,10,12--------31天
79 #4,6,9,11 --------------30天
80 #如果是闰年2------------29天
81 #不是闰年 2-------------28天
82 def days_of_month(year,month):
83 days = 0
84 if month in (1,3,5,7,8,10,12):
85 days = 31
86 elif month in (4,6,9,11):
87 days = 30
88 elif is_leap_year(year):
89 days = 29
90 else:
91 days = 28
92 return days
93
94 def is_leap_year(year):
95 if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:
96 return True
97 return False
98
99 def main():
100 print('*'*33)
101 year = int(input('请输入年份：'))
102 month = int(input('请输入月份：'))
103 date = int(input('请输入号数：'))
104 print('*'*33)
105 #某年某月有多少天
106 #days = days_of_month(year,month)
107 #print('{}年{}月有{}天'.format(year,month,days))
108 #某年某月某日是星期几
109 #day = get_start_day(year,month,date)
110 #print('{}年{}月{}日是星期{}'.format(year,month,date,day))
111 #打印日历
112 print_calendar(year,month,date)
113
114 #执行
115 main()
