( 24 )有以下程序: Option Base 1 Dim arr() As Integer Private Sub Form_Click() Dim i As Integer, j As Integer ReDim arr(3, 2) For i = 1 To 3 For j = 1 To 2 arr(i, j) = i * 2 + j Next j Next i ReDim Preserve arr(3, 4) For j = 3 To 4 arr(3, j) = j + 9 Next j Print arr(3, 2) arr(3, 4) End Sub 程序运行后,单击窗体,输出结果为