日常工作中,可能会有这样的需求:把一个文件夹下所有 jpg 图片转化为 png ;假设文件夹下只有4、5 张,手动修改的话是没问题,但如果数量达到上百张,就有点让人头疼,这个代码块正是用来解决此类问题的
import os def batch_rename(work_dir, old_ext, new_ext): # files = os.listdir(work_dir) for filename in os.listdir(work_dir): # Get the file extension split_file = os.path.splitext(filename) # Unpack tuple element root_name, file_ext = split_file # Start of the logic to check the file extensions, if old_ext = file_ext if old_ext == file_ext: # Returns changed name of the file with new extention newfile = root_name + new_ext # Write the files os.rename( os.path.join(work_dir, filename), os.path.join(work_dir, newfile) ) print("rename is done!") print(os.listdir(work_dir))