如何在python中删除多个文件中的字符

import os

def delete_chars_in_files(directory, files, chars):
    for file in files:
        file_path = os.path.join(directory, file)
        with open(file_path, 'r') as f:
            lines = f.readlines()
        with open(file_path, 'w') as f:
            for line in lines:
                new_line = line.replace(chars, '')
                f.write(new_line)

directory = '/path/to/directory'
files = os.listdir(directory)

chars_to_delete = 'abc'
delete_chars_in_files(directory, files, chars_to_delete)