[单选题]
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.1 2 3 2 4 6 3 6 9
B.2 3 4 3 4 5 4 5 6
C.1 4 7 2 5 8 3 6 9
D.1 2 3 4 5 6 7 8 9
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