题目1单选题
程序段如下: ls=list(range(5)) ls.append["Computer","Python"] print(ls) print函数输出的结果( )A. ['Computer', 'Python']B. [0, 1, 2, 3, 4, 'Computer', 'Python']C. [0, 1, 2, 3, 4, ['Computer', 'Python']]D. [0, 1, 2, ['Computer', 'Python']]
题目4单选题
程序段如下: ls=list(range(5)) lt=[["a","b"],"c"] ls.extend(lt) print(ls) print函数输出的结果( )A. [['a', 'b'], 'c']B. [0, 1, 2, 3, 4, ['a', 'b'], 'c']C. [0, 1, 2, 3, 4, 'a', 'b', 'c']D. [0, 1, 2, ['a', 'b'], 'c']
题目7单选题
以下程序段 ls=[('a', 1), ('b', 2), ('c', 6), ('d', 4), ('e', 3)] ls=sorted(ls, key=lambda x:x[1], reverse=True) print(ls) print函数输出的结果是( )A. [('c', 6), ('d', 4), ('e', 3), ('b', 2), ('a', 1)]B. {('a', 1),('b', 2),('c', 6), ('d', 4), ('e', 3)}C. [('a', 1), ('b', 2), ('c', 6), ('d', 4), ('e', 3)]D. [ ('a', 1),('b', 2),('e', 3), ('d', 4) ,('c', 6) ]
题目9单选题
程序段如下: ls=[256,"Byte",512,"bit"] lt=ls ls[1]="Python" print(lt) 输出的结果是( )A. [256, 512, 'bit']B. [256, 'Byte', 512, 'bit']C. [256, 'Python', 512, 'bit']D. []
题目10单选题
以下程序段 x = [1, 2, 3] y = [4, 5, 6] z = [7, 8, 9] xyz = zip(x, y, z) u=zip(*xyz) print(u) print函数输出的结果是( )A. [(1, 2, 3), (4, 5, 6), (7, 8, 9)]B. [1, 2, 3, 4, 5, 6, 7, 8, 9]C. [(1, 4, 7), (2, 5, 8), (3, 6, 9)]D. ((1, 2, 3), (4, 5, 6), (7, 8, 9))