1 year = int(input('请输入年份: '))
 2 n = year//4 - year//100 + year//400 #计算从公元元年开始到本年度的闰年数量
 3 t = (year + n ) % 7 #计算本年度1月1号是星期几
 4 
 5 dnum = [31,28,31,30,31,30,31,31,30,31,30,31]
 6 if (year % 4 == 0 and year % 100 != 0) or year % 400 == 0:
 7     dnum[1] = 29 #闰年二月份是29天
 8 
 9 print(f'年份：{year}')
10 
11 for i in range(0,12):
12     print(f'{i+1}月')
13     print('一\t二\t三\t四\t五\t六\t日')
14     for k in range(t-1):
15         print('  ', end='\t') #打印每月前面的空白部分
16     r = 7 - t;
17     for j in range(dnum[i]):
18         if t % 7 == 0 :  #是否换行判断
19             print(f'{j+1:2}')
20             t=1
21         else:
22             print(f'{j+1:2}', end='\t')
23             t = t + 1
24 
25     if j % 7 != r : #月底是否需要换行
26         print(' ')