获取某目录下的所有同类型文件

get_all_files.py

# 获取某目录下的所有同类型文件

import os
import fnmatch

matches = []

for root, dirs, files in os.walk('/Users/arischow/Desktop/data'):
    for file in fnmatch.filter(files, '*.txt'):
        matches.append(os.path.join(root, file))

print(matches)
for match in matches:
    with open(match, 'r', encoding='utf8') as original_file:
        with open('/Users/arischow/Desktop/data/numberOnly.txt', 'a') as new_file:
            for line in original_file:
                line = line.split(',')[-1]
                new_file.write(line)