有没有一种方法可以删除/更新Python中某个大文本文件中间的行？

def update_file(file_path, start_line, end_line, new_lines):
    # 打开原始文件和新文件
    with open(file_path, 'r') as original_file, open('new_file.txt', 'w') as new_file:
        lines = original_file.readlines()
        
        # 删除或更新指定行
        del lines[start_line-1:end_line]
        lines[start_line-1:start_line-1] = new_lines
        
        # 将更新后的内容写入新文件
        new_file.writelines(lines)
    
    # 关闭文件
    original_file.close()
    new_file.close()

# 示例用法：删除第3行到第5行
update_file('large_file.txt', 3, 5, [])

# 示例用法：更新第7行的内容
update_file('large_file.txt', 7, 7, ['This is the updated line.\n'])