如何递归删除文件名中的所有非数字字符

import os

def remove_non_numeric_chars(path):
    for root, dirs, files in os.walk(path):
        for file in files:
            file_path = os.path.join(root, file)
            new_file_name = ''.join(c for c in file if c.isdigit())
            if new_file_name != file:
                new_file_path = os.path.join(root, new_file_name)
                os.rename(file_path, new_file_path)
        for dir in dirs:
            dir_path = os.path.join(root, dir)
            remove_non_numeric_chars(dir_path)

# 调用示例
remove_non_numeric_chars('/path/to/directory')