下面代码的执行结果是>>> x = "Happy Birthday to you!">>> x * 3 选项: A: 系统报错 B: Happy Birthday to you! C: 'Happy Birthday to you!Happy Birthday to you!Happy Birthday to you!' D:Happy Birthday to you! Happy Birthday to you! Happy Birthday to you! 下面 结果是 报错 发布时间:2024-03-28 20:32:26