利用Python批量压缩png方法实例（支持过滤个别文件与文件夹）

import os,sysimport os.pathrootdir=sys.path[0] #需要过滤的文件notActionFile = ["choose_bg1.png"]#需要过滤的文件夹notActionPath = ["test"] #需要删除的文件needDeleteFile = ["s2.png"] def file_extension(path):  return os.path.splitext(path)[1]  for parent,dirnames,filenames in os.walk(rootdir): for filename in filenames:  fullPath = os.path.join(parent,filename)  #删除文件  for deleteFile in needDeleteFile:   if filename == deleteFile:      os.remove(fullPath)      isFilter = False  #过滤文件压缩  for noActionName in notActionFile:    if noActionName == filename:    isFilter = True  #过滤文件夹压缩      for onePath in notActionPath:   lastPath = fullPath.split('//')[-2]   if lastPath == onePath:    isFilter = True        if file_extension(fullPath) == ".png" and isFilter == False:   #print "action"     os.system("pngquant -f --ext .png --quality 50-80 /"" + fullPath + "/"")   print fullPath