#coding=utf-8
import arcpy
import os

def file_name(file_dir):
    FileIm_list = []
    FileEx_list = []
    for root, dirs, files in os.walk(file_dir):
        for file in files:
            FileIm_list.append(file)
            fileSub = file[17:23]
            FileEx_list.append(fileSub)  
            #print(file)
            #print(fileSub)
    return FileIm_list,FileEx_list
Flist = file_name("[目录]")
#print(len(Flist[0]))
#print(len(Flist[1]))

for i in range(0,len(Flist[0])):
    print(i)
    print(Flist[0][i])
    arcpy.ExtractSubDataset_management("[目录]\\%s"%(Flist[0][i]),
                                              "[目录]\\%s"%(Flist[1][i]),"0")   
print("Done")

ExtractSubDataset_management工具介绍