下列程序段的执行结果为( )。 Dim A(3,3) For M=1 To 3 For N=1 To 3 If N=M Or N=3-M+1 Then
A(M,N)=1
ElseA(M,N)=0
End If
Next N
Next M
For M=1 To 3
For N=1 To 3
Print A(M,N)
Next N
Print
Next MA) 1 0 0
0 1 0
0 0 0
B) 1 1 1
1 1 1
1 1 1
C) 0 0 0
0 0 0
0 0 0
D) 1 0 1
0 1 0
1 0 1