#encoding=utf-8#author: walker#date: 2014-03-07#summary: 深度遍歷指定目錄，并將子目錄和文件名改為小寫#注意，此程序只針對windows，windows下文件（夾）名不區分大小寫import osimport os.pathimport shutil#讀入指定目錄并轉換為絕對路徑rootdir = raw_input('root dir:/n')rootdir = os.path.abspath(rootdir)print('absolute root path:/n*** ' + rootdir + ' ***')#先修改文件名for parent, dirnames, filenames in os.walk(rootdir):  for filename in filenames:    pathfile = os.path.join(parent, filename)    pathfileLower = os.path.join(parent, filename.lower())    if pathfile == pathfileLower:  #如果文件名本身就是全小寫      continue    print(pathfile + ' --> ' + pathfileLower)    os.rename(pathfile, pathfileLower)#后修改目錄名，這里注意topdown參數。#topdown決定遍歷的順序，如果topdown為True，則先列舉top下的目錄，然后是目錄的目錄，依次類推；#反之，則先遞歸列舉出最深層的子目錄，然后是其兄弟目錄，然后父目錄。#我們需要先修改深層的子目錄for parent, dirnames, filenames in os.walk(rootdir, topdown=False):  for dirname in dirnames:    pathdir = os.path.join(parent, dirname)    pathdirLower = os.path.join(parent, dirname.lower())    if pathdir == pathdirLower: #如果文件夾名本身就是全小寫      continue    print(pathdir + ' --> ' + pathdirLower)    os.rename(pathdir, pathdirLower)