在窗体上画一个名称为Command1的命令按钮,然后编写如下程序: Private Sub Command1_Click() Dim i As Integer, j As Integer Dim a(10,10)As Integer For i=1 To 3 For j=1 To 3 a(i,j)=(i-1)*3+j Print a(i,j); Next j Print Next i End Sub 程序运行后,单击命令按钮,窗体上显示的是______。
A.12 3
246
369
B.23 4
345
456
C.14 7
258
369
D.123
456
789