import os


def list_files(directory):
    res_list = []
    for root, dirs, files in os.walk(directory):
        res_list.append(root + '/')
        for file in files:
            res_list.append(root + '/' + file)

    return res_list


# 用法示例
directory_path = '../src'
res = list_files(directory_path)

print(*res, sep="\n")