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 osimport 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=0mask_num=0source_new = 1mask_new = 1for 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

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