This design calculator uses to controls an attribute value the establishment, function skill and so on compilation, has met the practical requirements. Truly realized the contact surface succinctly, has been artistic, the function consummated, the unification goal.-This calculator uses to design controls an attribute value the establishment, function skill and so on compilation, has met the practical requirements. Truly real ized the contact surface succinctly, has been artistic, the function consummated, the unification goal.