使用pythom生成1txt每行是Gimage目录下文件夹的名字。读取1txt里面每行是一个文件夹的名字删除mntdisk1lhlandmarkimagenettrain目录下文件夹名字没出现过在1txt中的文件夹。

生成1.txt的代码：

import os

dir_path = 'G:/image'  # 图片目录路径
with open('1.txt', 'w') as f:
    for folder_name in os.listdir(dir_path):
        if os.path.isdir(os.path.join(dir_path, folder_name)):
            f.write(folder_name + '\n')

删除不在1.txt中出现过的文件夹的代码：

import os

dir_path = '/mnt/disk1/lh/landmark/imagenet/train'  # 图片目录路径
with open('1.txt', 'r') as f:
    folder_names = set(f.read().splitlines())

for folder_name in os.listdir(dir_path):
    folder_path = os.path.join(dir_path, folder_name)
    if os.path.isdir(folder_path) and folder_name not in folder_names:
        os.rmdir(folder_path)
``