下面代码的输出结果是 >>> x=’’Happy Birthday to you!’’ >>> x*3

admin2019-09-02  32

问题 下面代码的输出结果是
>>> x=’’Happy Birthday to you!’’
>>> x*3

选项 A、系统报错
B、’Happy Birthday to you!Happy Birthday to you!Happy Birthday to you!’
C、Happy Birthday to you!
Happy Birthday to you!
Happy Birthday to you!
D、Happy Birthday to you!

答案B

解析
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