题目内容

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

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下面代码的输出结果是 li=["hello",'se',[["m","n"],["h","kelly"],'all'],123,446] print(li[2][1][1])

A. H
B. kelly
C. n
D. m

下面代码的输出结果是 a=[1,2,3] foriina[::-1]: print(i,end=",")

A. 3,1,2
B. 2,1,3
C. 3,2,1,
D. 1,2,3

下面代码的输出结果是 L=[1,2,3,4,5] s1=','.join(str(n)forninL) print(s1)

A. [1,2,3,4,5]
B. 1,,2,,3,,4,,5
C. [1,,2,,3,,4,,5]
D. 1,2,3,4,5

下面代码的输出结果是 a=[9,6,4,5] N=len(a) foriinrange(int(len(a)/2)): a[i],a[N-i-1]=a[N-i-1],a[i] print(a)

A. [9,6,5,4]
B. [5,4,6,9]
C. [5,6,9,4]
D. [9,4,6,5]