主题：如何清空数组

If Vars("n") = 1 Then
    If e.Button = MouseButtons.Left Then
        points.add(New Point(e.x,e.y))
        Vars("n")=Vars("n")+ 1
    End If
ElseIf Vars("n") = 2 Then
    If e.Button = MouseButtons.Left Then
        points.add(New Point(e.x,e.y))
    End If
End If

If Vars("n") = 2 Then
    Dim point() As point = points.ToArray()
    g.DrawLine(Pens.Red,point(0).x,point(0).y ,point(1).x ,point(1).y)
    p.repaint()
    points.clear()
    Vars("n") = 1
End If