新建From1(窗体),新建Command1(按钮CommandButton),代码:
Private Sub Command1_Click()
Dim i As Integer
Dim arr() As Integer
ReDim arr(1)
For i = 0 To UBound(arr)
Debug.Print i
ReDim Preserve arr(5)
Next
End Sub
运行结果:
0
1
看来没变成5。