题目1单选题
下面代码的输出结果是 . a = [1, 2, 3] for i in a[::-1]: print(i,end=",")A. 3,1,2B. 2,1,3C. 3,2,1D. 1,2,3
题目3单选题
已知x=10,y=20,z=30;以下代码执行后x、y、z的值分别为( ) if x < y: z = x x = y y = zA. 10,20,30B. 10,20,20C. 20,10,10D. 20,10,30
题目5单选题
下面代码的输出结果是 . list1 = [1,2,3] list2 = [4,5,6] print(list1+list2)A. [2,4,6]B. [1, 2, 3, 4, 5, 6]C. [1,2,3]D. [5,7,9]