Question

我可以在python 3上编码时使用这种方法吗？

def switch_demo(argument):

    switcher = {
        51>switcher>13: "January",
        2: "February",
        3: "March",
        4: "April",
        5: "May",
        6: "June",
        7: "July",
        8: "August",
        9: "September",
        10: "October",
        11: "November",
        90>switcher>52: "December"
    }

print switcher.get(argument, "Invalid month")

我的问题是这个：

我想获取数字范围并返回代码。

Answer 1

也许您在谈论两个不同的东西：一些超出范围的值，然后是1-12的范围内的值：

def switch_demo(argument):
    switcher = {
        1: "January",
        2: "February",
        3: "March",
        4: "April",
        5: "May",
        6: "June",
        7: "July",
        8: "August",
        9: "September",
        10: "October",
        11: "November",
        12: "December"
    }
    return switcher.get(argument, "Invalid month")

def switch_range(argument):
    if argument <= 12:
        return switch_demo(argument)
    elif argument <= 51:
        return switch_demo(1)
    else:
        return switch_demo(12)

Answer 2

从Range as dictionary key in Python得到答案

如果您希望将值的范围用作字典的键，请尝试此操作

switcher = dict(
                [(n, 'January')
                    for n in range(13,51)] +
                [(2, 'February')] +
                [(3, 'March')] +
                [(4, 'April')] +
                [(5, 'May')] +
                [(6, 'June')] +
                [(7, 'July')] +
                [(8, 'August')] +
                [(9, 'September')] +
                [(10, 'October')] +
                [(11, 'November')] +
                [(n, 'December') 
                    for n in range(52,90)]
                )

可以在python的switch-case中使用变量吗？

2 个答案: