单项选择题
A.[1,2,3]+[1,2,3]B.[’1’,’2’,’3’]+[’1’,’2’,’3’]+[’1’,’2’,’3’]C.[1,2,3]**3D.[1,2,3]*3
以下代码的输出结果是()。lt =["apple","orange","banana"]ls =ltlt.cl...
以下代码的输出结果是()。lt =["apple","orange","banana"]ls =ltlt.clear()print(ls)
A.’apple’,’orange’,’banana’B.[’apple’,’orange’,’banana’]C.[]D.变量未定义的错误
以下代码的输出结果是()。x =["Python","is","open"]y =["simple"]x[2:...
以下代码的输出结果是()。x =["Python","is","open"]y =["simple"]x[2:]=yprint(x)
A.[’Python’,’is’,’simple’]B.["Python","is","simple"]C.["Python","is","open","simple"]D.出错
设有变量a="Me","You",则变量a属于()。A.字符串B.元组C.列表D.集合
单项选择题设有变量a="Me","You",则变量a属于()。
A.字符串B.元组C.列表D.集合