我對 Python 很陌生，我正在做我的第三個專案，一個使用 Python 的 Excel 日歷生成器。所以我堅持創建一個函式，該函式將回傳當月的作業日串列 [星期一、星期二、星期三...]。我想也許我可以使用 for 回圈和切片來做到這一點，但是它不起作用，而且很可能我需要使用日期時間和日歷模塊。
這是我現在所擁有的：
l1 = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
def weekdays(start_day, weeks_in_month):
weekdays_list = []
for days in range(weeks_in_month):
weekdays_list.append(l1[start_day:])
return weekdays_list
如果您能以最基本的方式提供有關如何執行此操作的想法，我將不勝感激。
uj5u.com熱心網友回復：
import itertools
# python naming convention uses UPPERCASE for constants
WEEKDAYS = ["Monday", "Tuesday", "Wednesday", "Thursday",
"Friday", "Saturday", "Sunday"]
# let's use number of days instead of weeks so we can handle
# fractional weeks
def weekdays(start_day, num_days):
# create a cycling iterator to simplify wrapping around weeks
day = itertools.cycle(WEEKDAYS)
# skip the iterator forward to start_day
for _ in range(WEEKDAYS.index(start_day)):
next(day)
# generate the list of days using a list comprehension
return [next(day) for _ in range(num_days)]
itertools.cycle
uj5u.com熱心網友回復：
import calendar
print calendar.monthcalendar(2013, 4)
[[1, 2, 3, 4, 5, 6, 7], [8, 9, 10, 11, 12, 13, 14], [15, 16, 17, 18, 19, 20, 21], [22, 23, 24, 25, 26, 27, 28], [29, 30, 0, 0, 0, 0, 0]]
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