问题：[填空题]
[填空题] 在窗体画一个命令按钮，然后编写如下过程: Function fun(ByVal num As Long)As LoneDim k As Longk=1 num=Abs (num) Do While num k=k*(num Mod 10) num=num10 Loop fun=k End Function Private Sub Command1_Click() Dim n As Long Dim r As Longn= InputBox (“请输入一个数”)n=CLng (n)r
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