Python排序字​​符串数组，里面有整数

Question

我如何使用python对列表格式进行排序

format=["12 sheet","4 sheet","48 sheet","6 sheet", "busrear", "phonebox","train"]

像这样

format =["4 sheet", "6 sheet", "12 sheet", "48 sheet", "busrear, "phonebox", "train"]

编辑：如果数组是列表列表，那么我们怎么能像这样做呢

format=[[1L, u'12 sheet', 0],[2L, u'4 sheet', 0], [3L, u'48 sheet', 0], [4L, u'6 sheet', 0 [5L, u'Busrear', 0], [6L, u'phonebox', 0], [7L, u'train', 0]]

Answer 1

>>> fmts =["12 sheet","4 sheet","48 sheet","6 sheet", "busrear", "phonebox","train"]
>>> fmts.sort(key=lambda x: (int(x.split(None, 1)[0]) if x[:1].isdigit() else 999, x))
>>> fmts
['4 sheet', '6 sheet', '12 sheet', '48 sheet', 'busrear', 'phonebox', 'train']

format是内置函数。不要将它用作变量名。它将影响内置函数。

Answer 2

您可以创建一个如下所示的中间数组：

intermediate = [(12, "sheet"), (4, "sheet"), ... ]

然后您可以使用intermediate上的排序，默认情况下将按第一个值排序。

然后回到你的格式。