python实现本地图片转存并重命名的示例代码

//有1-22个文件夹，各文件夹下有Detect_0文件夹，此文件夹下有source与mask文件夹，目的是将需要获取图片的

文件夹下的图片复制到新的文件夹下并按顺序重命名

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

来源：https://blog.csdn.net/qq_19656669/article/details/79910506