将以下代码保存成Python文件,运行后输出的是( ) li = [alex,eric,rain] s = "_".join(li) print(s)
(A)_alex_eric_rain_
(B)_alex_eric_rain
(C)alex_eric_rain_
(D)alex_eric_rain
参考答案
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(A)_alex_eric_rain_
(B)_alex_eric_rain
(C)alex_eric_rain_
(D)alex_eric_rain