python應(yīng)用操作——在Python中實(shí)現(xiàn)一個(gè)真正的switch-case語句

下面的代碼使用一個(gè)字典來模擬構(gòu)造一個(gè)switch-case。

In [104]: def xswitch(x):

     ...:     return xswitch._system_dict.get(x, None)

     ...:

In [105]: xswitch._system_dict = {'files': 10, 'folders': 5, 'devices': 2}

In [106]: print(xswitch('default'))None

In [107]: print(xswitch('devices'))2