如何遍历我的目录以附加带有NaN值的文件？

import os
import pandas as pd

def traverse_directory_with_nan_files(directory):
    for root, dirs, files in os.walk(directory):
        for file in files:
            file_path = os.path.join(root, file)
            if pd.isnull(file) or pd.isnull(file_path):
                # 对于包含NaN值的文件进行相应的处理，例如打印文件名
                print("文件名包含NaN值:", file)
                # 其他处理逻辑...

        for dir in dirs:
            dir_path = os.path.join(root, dir)
            traverse_directory_with_nan_files(dir_path)  # 递归遍历子目录

# 调用函数并传入目标目录的路径
traverse_directory_with_nan_files("目标目录路径")