python读取文件夹中的文件，是按照什么排序的，为什么12排在1前面？

Question

如题，

In [61]: file_names
Out[61]:
['MgCa_45deg_halfdeg_0_t200.xlsx',
'MgCa_45deg_halfdeg_10_t200_com.xlsx',
'MgCa_45deg_halfdeg_11_t200_com.xlsx',
'MgCa_45deg_halfdeg_12_t200_com.xlsx',
'MgCa_45deg_halfdeg_13_t200_com.xlsx',
'MgCa_45deg_halfdeg_14_t200_com.xlsx',
'MgCa_45deg_halfdeg_15_t200_com.xlsx',
'MgCa_45deg_halfdeg_1_t200_com.xlsx',
'MgCa_45deg_halfdeg_2_t200_com.xlsx',
'MgCa_45deg_halfdeg_3_t200_com.xlsx',
'MgCa_45deg_halfdeg_4_t200_com.xlsx',
'MgCa_45deg_halfdeg_5_t200_com.xlsx',
'MgCa_45deg_halfdeg_6_t200_com.xlsx',
'MgCa_45deg_halfdeg_7_t200_com.xlsx',
'MgCa_45deg_halfdeg_8_t200_com.xlsx',
'MgCa_45deg_halfdeg_9_t200_com.xlsx']

Answer 1

按ascii码来排序，如果想解决该问题，具体如下：
from natsort import natsorted
import os
for root,dirs,files in os.walk(path):
files = natsorted(files)