pandas的多列sort二维数组(list与numpy.array)

pandas的sort

https://blog.csdn.net/weixin_42764612/article/details/101440359?ops_request_misc=%7B%22request%5Fid%22%3A%22160180357019195240458242%22%2C%22scm%22%3A%2220140713.130102334.pc%5Fall.%22%7D&request_id=160180357019195240458242&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allfirst_rank_ecpm_v3~pc_rank_v2-1-101440359.first_rank_ecpm_v3_pc_rank_v2&utm_term=pandas求sort&spm=1018.2118.3001.4187

Python之二维数组(list与numpy.array) https://blog.csdn.net/mingyuli/article/details/81238986?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase

list不能用这种索引、

a[1,1]""“相当于a[1,1]被认为是a[(1,1)],不支持元组索引”"" Traceback (most recent call last): File “”, line 1, in TypeError: list indices must be integers, not tuple

a[:,1]

Traceback (most recent call last): File “”, line 1, in TypeError: list indices must be integers, not tuple

array是可以用这种索引的

b[1,1] 5

b[:,1] array([2,5,8])