顺序输出字符串中的字符:for str in 'This is a string'doecho $strdone输出结果:This is a string

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顺序输出字符串中的字符:for str in 'This is a string'doecho $strdone输出结果:This is a string

A.正确

B.错误

参考答案:

答案:正确