在窗体上画一个名称为Text1的文本框，并编写如下程序：Option Base 1Private Sub
Form_Click() Dim arr Dim Start As Integer, Finish As Integer Dim
Sum As
Integer arr=Array(12,4,8,16) Start=LBound(arr) Finish=UBound(arr) Sum=0 For
i=Start To Finish Sum=Sum+arr(i) Next i c=Sum /
Finish Text1.Text=cEnd Sub运行程序，单击窗体，则在文本框中显示的是______。