问如何使用python连接文件夹中的所有音频(.wav )文件？

EN

import subprocess
import fnmatch
import os

matches = []
for root, dirnames, filenames in 
os.walk('/Users/user/Downloads/audio_files'):
    for filename in fnmatch.filter(filenames, '*.WAV'):
        matches.append(root.replace('/Volumes/UNTITLED/',''))

folders = set(matches)
print(folders)