如何遍历多个文件夹并追加文件？

import os
import shutil

def append_files_in_folders(folder_path, target_file):
    for root, dirs, files in os.walk(folder_path):
        for file in files:
            file_path = os.path.join(root, file)
            with open(file_path, 'rb') as f:
                with open(target_file, 'ab') as target:
                    target.write(f.read())

# 示例用法
folder_paths = ['/path/to/folder1', '/path/to/folder2']
target_file = '/path/to/target_file.txt'

for folder_path in folder_paths:
    append_files_in_folders(folder_path, target_file)