python 星期转换代码

以下是将星期转换为数字的Python代码：

def weekday_to_number(weekday):
    weekdays = {
        'Monday': 1,
        'Tuesday': 2,
        'Wednesday': 3,
        'Thursday': 4,
        'Friday': 5,
        'Saturday': 6,
        'Sunday': 7
    }
    return weekdays.get(weekday, None)

使用方法：

weekday_to_number('Monday')  # 返回1
weekday_to_number('Sunday')  # 返回7
weekday_to_number('Invalid')  # 返回None

以下是将数字转换为星期的Python代码：

def number_to_weekday(number):
    weekdays = {
        1: 'Monday',
        2: 'Tuesday',
        3: 'Wednesday',
        4: 'Thursday',
        5: 'Friday',
        6: 'Saturday',
        7: 'Sunday'
    }
    return weekdays.get(number, None)

使用方法：

number_to_weekday(1)  # 返回'Monday'
number_to_weekday(7)  # 返回'Sunday'
number_to_weekday(0)  # 返回None