创建备份时从Python中的多个文件中删除字符串

import os

def delete_string_from_files(directory, string_to_delete):
    for filename in os.listdir(directory):
        if filename.endswith(".txt"):  # 只处理以.txt结尾的文件，可以根据实际情况修改
            file_path = os.path.join(directory, filename)
            with open(file_path, "r") as file:
                content = file.read()
            
            modified_content = content.replace(string_to_delete, "")
            
            backup_file_path = file_path + ".bak"
            with open(backup_file_path, "w") as backup_file:
                backup_file.write(modified_content)
            
            os.remove(file_path)  # 删除原文件
            os.rename(backup_file_path, file_path)  # 将备份文件重命名为原文件名

# 示例用法
directory = "/path/to/files"  # 替换为实际的文件目录
string_to_delete = "要删除的字符串"
delete_string_from_files(directory, string_to_delete)