/** 渲染的下拉菜单数量 */
export declare const ITEM_ELEMENT_NUMBER = 30;
/** 下拉列表高度 */
export declare const DROPDOWN_HEIGHT = 250;
export declare const SELECT_MODE: any[];
export declare const ITEM_HEIGHT = 40;
export declare const VISIBLE_DOM_HEIGHT: number;
export declare const REACT_DELTA: number;