月末和周末逻辑

在程序中处理月末和周末逻辑时，可以使用以下代码示例来实现：

判断月末：

import calendar
from datetime import datetime

now = datetime.now()
year = now.year
month = now.month

last_day = calendar.monthrange(year, month)[1]

if now.day == last_day:
    print("Today is the last day of the month.")
else:
    print("Today is not the last day of the month.")

判断周末：

import datetime

now = datetime.datetime.now()

if now.weekday() == 5 or now.weekday() == 6:
    print("Today is a weekend.")
else:
    print("Today is not a weekend.")

可以将这些代码进行结合和封装，使其更加健壮和易用，便于在实际应用中调用和使用。