下面运行程序后，单击命令按钮，输出出的结果是 【12】 。
Private Sub Command1_Click( )
Dim a% (1 To 5) ,i%, s#
For i = 1 To 5
a(i) =i
Next
s = Fun(a)
Print"s="; s;
End Sub
Function Fun(a() As Integer)
Dim t#, i%
t=1
For i = LBound(a) To UBound(a)
t=t * a(i)
Next
Fun =t
End Function