如何使用os.walk()通过for循环在多个目录中循环

import os

root_directories = ['/path/to/directory1', '/path/to/directory2']

for root_directory in root_directories:
    for root, directories, files in os.walk(root_directory):
        # 在这里编写对每个目录和文件的操作

for root_directory in root_directories:
    for root, directories, files in os.walk(root_directory):
        for directory in directories:
            directory_path = os.path.join(root, directory)
            # 对每个子目录进行操作，例如打印路径
            print('子目录：', directory_path)
        
        for file in files:
            file_path = os.path.join(root, file)
            # 对每个文件进行操作，例如打印路径
            print('文件：', file_path)