设置类的类型

interface ClockInterface{
    currentDate:Date
    tick():void
}
interface ClockConstructor{
    new (hour:number,minute:number):any;
}
let Clock:ClockConstructor = class Clock implements ClockInterface{
    currentDate:Date;
    currentHour:number;
    currentMinute:number;
    constructor(h:number,m:number){
        this.currentDate = new Date()
        this.currentHour = h;
        this.currentMinute = m;
    }
    tick(){
        console.log(`${this.currentDate} ${this.currentHour} ${this.currentMinute}`)
    }
}
let clock = new Clock(10,20);
clock.tick()