保存指定目录及其子目录的jpg文件

import os

txt_path = 't1.txt'
f = open(txt_path, mode='a', encoding='utf-8')

def all_path(dirname):
    result = []
    for maindir, subdir, file_name_list in os.walk(dirname):
        for filename in file_name_list:
            if '.jpg' in filename:
                result.append(filename)
    return result

jpg_path = 'E:\\transferData\\10-12.45WData'
for jpg_name in all_path(jpg_path):
    f.write(jpg_name + '\n')