python实现本地图片转存并重命名的示例代码

import os
import shutil
//删除之前文件夹并新建空文件夹
shutil.rmtree(r'E:\\all_project\\picture')
os.makedirs("E:\\all_project\\picture\\source\\")
os.makedirs("E:\\all_project\\picture\\mask\\")
//确定需要获取图片的文件夹编号
# arr=["1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22"]
arr=["1","2"]
source_num=0
mask_num=0
source_new = 1
mask_new = 1
for i in arr:

 source = 'E:\\all_project\\'+i+'\\Detect_0\\source\\'
 source_final = 'E:\\all_project\\picture\\source\\'
 source_ls = os.listdir(source)
 print(source_ls)
 mask = 'E:\\all_project\\'+i+'\\Detect_0\\mask\\'
 mask_final = 'E:\\all_project\\picture\\mask\\'
 mask_ls = os.listdir(mask)
 print(mask_ls)

 source_list = os.listdir(source)
 mask_list = os.listdir(mask)
 source_num += len(source_ls)
 mask_num += len(mask_ls)
 print(source_num)
 print(mask_num)

 old = 1
 while len(os.listdir(source_final)) < source_num:
  oldname = source + str(old) + ".bmp"
  if os.path.exists(oldname):
   newname = source_final + str(source_new) + ".bmp"
   shutil.copyfile(oldname, newname)
   source_new += 1
   print(source_new)
   old += 1
  else:
   old += 1

 old = 1
 while len(os.listdir(mask_final)) < mask_num:

  oldname = mask + str(old) + ".bmp"
  if os.path.exists(oldname):
   newname = mask_final + str(mask_new) + ".bmp"
   shutil.copyfile(oldname, newname)
   mask_new += 1
   old += 1
  else:
   old += 1