在窗体上建立名称为Text1、Text2和删的三个文本框，其中Text1和Text2文本框用来接受两个整数(假设为M和N)，建立一个名称为command1的命令按钮，单击它将得到数M从右边起的N位数字，并把该数字显示在Text3文本框中，如下图所示。请填空。

private Fuction digit(ByVal m As Integer, ByVal n As Integer) As Integer
Dim i As Integer
For i = 1 To n - 1
M=m \ 10
Next i
Digit= 【6】
End Function
Private Sub Command1_Click()
Dim m As Integer，n As Integer，k As Integer
m=Val(Text1.Text)
n=Val(Tex2.Text)
k= 【7】
Text3.Text = Str(k)
End Sub

He said he would not give me a present unless I (succeed) ______ in doing the experiment.