python 修改某一目錄下檔案名稱

# -*- coding: gbk -*- import sys,string,os,shutil def RenameFiles(srcdir,prefix):  try:   srcfiles = os.listdir(srcdir)   index = 1   for srcfile in srcfiles:    print("檔案：" + srcfile)    srcfilename = os.path.splitext(srcfile)[0][1:]    sufix = os.path.splitext(srcfile)[1]    #print(sufix)    destfile = srcdir + "/" + prefix + "_%04d"%(index) + sufix    srcfile = srcdir + "/" + srcfile    os.rename(srcfile,destfile)    index +=1    print("修改後：" + destfile)  except:   print("請核對您的輸入。")   return 0

over = True while over:  print("請輸入檔案夾路徑：")  srcdir = input()      #srcdir = "d:/music"  print("請輸入修改檔案名稱格式(如：輸入aa 檔案名稱改為：aa_0001.mp3)：")  prefix = input()      #prefix = "IMG_2014"  result = RenameFiles(srcdir,prefix)  if result != 0:   print("修改完畢，請查看")  print("是否繼續。y/n")  yn = input()  if yn == "y":   over = True  else:   over = False else:  print("完成所有修改")