export declare class UIDate {
    private d?;
    get timestamp(): number;
    set year(v: number);
    get year(): number;
    set month(v: number);
    get month(): number;
    set day(v: number);
    get day(): number;
    set hours(v: number);
    get hours(): number;
    set minutes(v: number);
    get minutes(): number;
    set seconds(v: number);
    get seconds(): number;
    private date;
    constructor(d?: number | string | Date);
    toStringByFormatString(s: string): string;
    private stringToDate;
}
/**
 * 给0-9的数字补零，转为00、01……
 * @param n 0-9的数字
 */
export declare function toDouble(n: number | string): string;