type Compute_type = '+' | '-';
interface Set_options {
    y?: number;
    M?: number;
    d?: number;
    h?: number;
    m?: number;
    s?: number;
}
export declare class QCDate {
    static ymd_hms: string;
    static second: number;
    static minute: number;
    static hour: number;
    static day: number;
    static month: number;
    static year: number;
    date: Date;
    constructor(date?: string | number | Date);
    compute(type: Compute_type, num: number, unit: number): this;
    is_start(type: 'day' | 'mounth'): boolean | undefined;
    start(type: 'day' | 'week' | 'mounth' | 'year'): this;
    end(type: 'day' | 'week' | 'mounth'): this;
    set(options: Set_options | any): this;
    get(options: (keyof Set_options)[]): number[];
    format(_format?: string, no0?: boolean): string;
}
export default QCDate;