/**
 * 获取浏览器宽高
 * @param screen Screen
 * @returns
 */
export declare function getScreenInfo(screen: Screen): string;
/**
 * 获取文档宽高
 * @param r Document
 * @returns
 */
export declare function getDocInfo(w: Window, r: Document): string;
export declare function getClientTime(): number;