某个窗体已编写以下事件过程：
Private Sub Form_Click()
Dim k as Integer, n as Integer, m as Integer
n=5
m=1
k=1
Do While k<=n
m=m*2
k=k+1
Loop
MsgBox m, vbYesNo + vbInformation, "Result"
End Sub
打开窗体运行后，单击窗体，弹出的信息框外观样式是______。