Python日历模块：formatyear() 方法
日历模块允许像程序一样输出日历，并提供与日历相关的附加有用功能。 Calendar 模块中定义的函数和类使用理想化的日历，当前的公历在两个方向上无限扩展。
class calendar.TextCalendar(firstweekday=0)可用于生成纯文本日历。 formatyear()方法是 TextCalendar 实例的方法之一。
Python中的formatyear()方法用于获取一整年的 m 列日历作为多行字符串。
Syntax: formatyear(year, width=2, lines=1, c=6, m=3)
Parameter:
year: year of the calendar
width: [optional] Specifies the width date column
line: [optional] Specifies the number of lines that each week will use.
c: [optional] Number of spaces between month columns
m: [optional] Number of months in a row
Returns: Return a m-column calendar for an entire year.
取决于构造函数中指定的或由setfirstweekday()方法设置的第一个工作日。
代码#1：
# Python program to demonstrate working of formatyear() method
# importing calendar module
import calendar
text_cal = calendar.TextCalendar(firstweekday = 0)
year = 2018
width = 4
# printing formatyear
print(text_cal.formatyear(year, width))
输出：
2018
January February March
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6 7 1 2 3 4 1 2 3 4
8 9 10 11 12 13 14 5 6 7 8 9 10 11 5 6 7 8 9 10 11
15 16 17 18 19 20 21 12 13 14 15 16 17 18 12 13 14 15 16 17 18
22 23 24 25 26 27 28 19 20 21 22 23 24 25 19 20 21 22 23 24 25
29 30 31 26 27 28 26 27 28 29 30 31
April May June
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 1 2 3 4 5 6 1 2 3
2 3 4 5 6 7 8 7 8 9 10 11 12 13 4 5 6 7 8 9 10
9 10 11 12 13 14 15 14 15 16 17 18 19 20 11 12 13 14 15 16 17
16 17 18 19 20 21 22 21 22 23 24 25 26 27 18 19 20 21 22 23 24
23 24 25 26 27 28 29 28 29 30 31 25 26 27 28 29 30
30
July August September
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 1 2 3 4 5 1 2
2 3 4 5 6 7 8 6 7 8 9 10 11 12 3 4 5 6 7 8 9
9 10 11 12 13 14 15 13 14 15 16 17 18 19 10 11 12 13 14 15 16
16 17 18 19 20 21 22 20 21 22 23 24 25 26 17 18 19 20 21 22 23
23 24 25 26 27 28 29 27 28 29 30 31 24 25 26 27 28 29 30
30 31
October November December
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6 7 1 2 3 4 1 2
8 9 10 11 12 13 14 5 6 7 8 9 10 11 3 4 5 6 7 8 9
15 16 17 18 19 20 21 12 13 14 15 16 17 18 10 11 12 13 14 15 16
22 23 24 25 26 27 28 19 20 21 22 23 24 25 17 18 19 20 21 22 23
29 30 31 26 27 28 29 30 24 25 26 27 28 29 30
31
请注意，可以生成日历的最早年份取决于平台。
代码 #2：由于 m=2，所以连续显示的月份数为 2。
# Python program to demonstrate working of formatyear() method
# importing calendar module
import calendar
text_cal = calendar.TextCalendar(firstweekday = 0)
# default value of width is 0
# printing formatyear
print(text_cal.formatyear(2018, 5, c = 3, m = 2))
输出：
2018
January February
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6 7 1 2 3 4
8 9 10 11 12 13 14 5 6 7 8 9 10 11
15 16 17 18 19 20 21 12 13 14 15 16 17 18
22 23 24 25 26 27 28 19 20 21 22 23 24 25
29 30 31 26 27 28
March April
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 1
5 6 7 8 9 10 11 2 3 4 5 6 7 8
12 13 14 15 16 17 18 9 10 11 12 13 14 15
19 20 21 22 23 24 25 16 17 18 19 20 21 22
26 27 28 29 30 31 23 24 25 26 27 28 29
30
May June
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6 1 2 3
7 8 9 10 11 12 13 4 5 6 7 8 9 10
14 15 16 17 18 19 20 11 12 13 14 15 16 17
21 22 23 24 25 26 27 18 19 20 21 22 23 24
28 29 30 31 25 26 27 28 29 30
July August
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 1 2 3 4 5
2 3 4 5 6 7 8 6 7 8 9 10 11 12
9 10 11 12 13 14 15 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26
23 24 25 26 27 28 29 27 28 29 30 31
30 31
September October
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 1 2 3 4 5 6 7
3 4 5 6 7 8 9 8 9 10 11 12 13 14
10 11 12 13 14 15 16 15 16 17 18 19 20 21
17 18 19 20 21 22 23 22 23 24 25 26 27 28
24 25 26 27 28 29 30 29 30 31
November December
Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 1 2
5 6 7 8 9 10 11 3 4 5 6 7 8 9
12 13 14 15 16 17 18 10 11 12 13 14 15 16
19 20 21 22 23 24 25 17 18 19 20 21 22 23
26 27 28 29 30 24 25 26 27 28 29 30
31