如何排除子文件夹？

import os

def process_folder(folder_path):
    for root, dirs, files in os.walk(folder_path):
        for file in files:
            file_path = os.path.join(root, file)
            # 处理文件操作，例如打印文件路径
            print(file_path)

def exclude_subfolders(folder_path):
    for root, dirs, files in os.walk(folder_path):
        for dir in dirs:
            dir_path = os.path.join(root, dir)
            # 判断是否为子文件夹
            if folder_path in dir_path:
                continue
            # 处理文件夹操作，例如打印文件夹路径
            print(dir_path)

# 示例调用
folder_path = '/path/to/folder'
process_folder(folder_path)
exclude_subfolders(folder_path)