以下程序的功能是：求x的y次方。根据题意，请完善下列程序。 Private Function funl(x As Double, y As Integer)As Double Dim i As Integer Dim z As Double z=【 】 For i=1 To y z=z*x Next i 【 】 End Function Private Sub Command1_Click() Dim m As Double Dim n As Integer Dim t As Double m=InputBox("输入x数:") n=InputBox("输入次方数:") t=funl(m, n) Print Str(m)+"^"+Str(n)+"=";【 】 End Sub