Function f(n As Integer) As Long
If n = 1 Then
f =5
Else
f =2 * f(n - 1) - 3
End If
End Function
Private Sub Command1_click()
Dim n As Integer
n = Val(Text1.Text)
Text2.Text = Str(f(n))
End Sub
该程序段运行后,在文本框Text1中输入5,单击命令按钮Command1后,文本框Text2中显示的是( )