Python:对由字母和数字组成的字符串列表进行排序 [英] Python: Sort a list of strings composed of letters and numbers

问题描述

我有一个列表，其元素由字母和数字组成，如下所示:

I have a list that its elements are composed of a letters and numbers as shown below :

['H1', 'H100', 'H10', 'H3', 'H2', 'H6', 'H11', 'H50', 'H5', 'H99', 'H8'] 

我想对它进行排序，所以我使用了函数sort，但是得到了输出:

I wanted to sort it, so I used the function sort, but I got as output :

>>> a = ['H1', 'H100', 'H10', 'H3', 'H2', 'H6', 'H11', 'H50', 'H5', 'H99', 'H8']
>>> print sorted(a)
['H1', 'H10', 'H100', 'H11', 'H2', 'H3', 'H5', 'H50', 'H6', 'H8', 'H99']

但是，我希望输出为:

['H1', 'H2', 'H3', 'H5', 'H6', 'H8', 'H10', 'H11', 'H50', 'H99', 'H100']

有人知道如何做到这一点吗?谢谢

Does anyone has an idea how to do this please? Thank you

推荐答案

l = ['H1', 'H100', 'H10', 'H3', 'H2', 'H6', 'H11', 'H50', 'H5', 'H99', 'H8']
print sorted(l, key=lambda x: int("".join([i for i in x if i.isdigit()])))

输出:

['H1', 'H2', 'H3', 'H5', 'H6', 'H8', 'H10', 'H11', 'H50', 'H99', 'H100']

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