二维数组排序问题

[babala2009]

例如：
一个二维数组

姓名 数学 语文
赵 100 99
钱 99 98
孙 97 100
李 98 97

想输出显示，需要对其进行排序，例如按姓名排序，按数学成绩排序等，如何做?

[babala2009]

解决 sort

[babala2009]

回复给分 是

[东方不败耶耶耶]

恭喜楼主

[ImN1]

>>> a =[[1,3],[4,5],[2,6],[9,2],[3,0]]
>>> from operator import itemgetter
>>> a.sort(key=itemgetter(1))
>>> a
[[3, 0], [9, 2], [1, 3], [4, 5], [2, 6]]
>>> a.sort(key=itemgetter(0))
>>> a
[[1, 3], [2, 6], [3, 0], [4, 5], [9, 2]]

[bugs2k]

Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> a = [['赵', 100, 99], ['钱', 99,  98], ['孙', 97,  100], ['李', 98,  97]]
>>> a
[['\xd5\xd4', 100, 99], ['\xc7\xae', 99, 98], ['\xcb\xef', 97, 100], ['\xc0\xee', 98, 97]]
>>> b = sorted(a, key=lambda s:s[0], reverse=0)
>>> b
[['\xc0\xee', 98, 97], ['\xc7\xae', 99, 98], ['\xcb\xef', 97, 100], ['\xd5\xd4', 100, 99]]
>>> c = sorted(a, key=lambda s:s[1], reverse=0)
>>> c
[['\xcb\xef', 97, 100], ['\xc0\xee', 98, 97], ['\xc7\xae', 99, 98], ['\xd5\xd4', 100, 99]]
>>> d = sorted(a, key=lambda s:s[2], reverse=0)
>>> d
[['\xc0\xee', 98, 97], ['\xc7\xae', 99, 98], ['\xd5\xd4', 100, 99], ['\xcb\xef', 97, 100]]
>>>

[anaf]

引用 4 楼 snmr_com 的回复:

>>> a =[[1,3],[4,5],[2,6],[9,2],[3,0]]
>>> from operator import itemgetter
>>> a.sort(key=itemgetter(1))
>>> a
[[3, 0], [9, 2], [1, 3], [4, 5], [2, 6]]
>>> a.sort(key=itemgetter(0))
>>> a
[[1, 3], [2, 6], [3, 0], [4, 5], [9, 2]]

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