单选题：h0007. 表达式for(i
表达式for(i <- 1 to 3; for(j <- 1 to 3; if i != j ) print((10 * i + j)) + " "输出结果正确的是？
A.11 12 13 21 22 23 31 32 33
B.11 13 21 23 31 33
C.12 13 21 23 31 32
D.11 12 21 22 31 32
答案：C
A.11 12 13 21 22 23 31 32 33
B.11 13 21 23 31 33
C.12 13 21 23 31 32
D.11 12 21 22 31 32
答案：C
