A.on(press){}B.on(rollOver){}C.on(release){}D.on(releaseOutside){}
A.正緩動值,加速度B.0緩動值,沒有速度C.負緩動值,加速度D.負緩動值,減速度
A.遮罩層B.被遮罩層C.隱藏圖層D.鎖定圖層