python中递归记录指定后缀名的文件示例分享

# coding=utf-8

import os

# 三个全局变量：
root_folder = './root' # 将被递归的文件夹根目录
save_txt = './paths.txt' # 记录路径的文档
suffix_name = '.jpg' # 后缀名

# 递归记录指定后缀名的文件的绝对路径
def record(folder, save_txt):
 save_file = open(save_txt, 'a')
 for name in os.listdir(folder):
 if os.path.isdir(os.path.join(folder, name)):
 record(os.path.join(folder, name), save_txt)
 elif name.endswith(suffix_name):
 save_file.write('{}
'.format(os.path.join(folder, name)))
 save_file.close()

def main():
 # 如果save_txt已存在，则删除
 try:
 os.remove(save_txt)
 except OSError:
 pass
 # 开始递归记录
 record(os.path.abspath(root_folder), save_txt)

if __name__ == '__main__':
 main()