ScrollBar: cache bar width calculation
ScrollBar: cache bar width calculation

ElemeFE/element,JavascriptTips/element,Raganof/element,baiyaaaaa/element,Kingwl/element,immissile/m-element,huguangju/element,Kingwl/element,huguangju/element,immissile/m-element,JavascriptTips/element,Leopoldthecoder/element-1,ElemeFE/element,Leopoldthecoder/element-1,Raganof/element,baiyaaaaa/element