o1 = new point { x = 10 y = 10 print("P1    : ") }
o2 = new point { x = 20 y = 40 print("P2    : ") }

o3 = o1 + o2
o3.print("P1+P2 : ")

class point x y

        func operator cOperator,Para
                result = new point
                switch cOperator
                on "+"
                        result.x = x + Para.x
                        result.y = y + Para.y
                on "-"
                        result.x = x - Para.x
                        result.y = y - Para.y
                off
                return result

        func print cPoint
                see cPoint + "X : " + x + " Y : " + y + nl
