点击查看【bilibili】

    1. interface ClockInterface{
    2.     currentDate:Date
    3.     tick():void
    4. }
    6. interface ClockConstructor{
    7.     new (hour:number,minute:number):any;
    8. }
    11. let Clock:ClockConstructor = class Clock implements ClockInterface{
    12.     currentDate:Date;
    13.     currentHour:number;
    14.     currentMinute:number;
    16.     constructor(h:number,m:number){
    17.         this.currentDate = new Date()
    18.         this.currentHour = h;
    19.         this.currentMinute = m;
    20.     }
    21.     tick(){
    22.         console.log(`${this.currentDate} ${this.currentHour} ${this.currentMinute}`)
    23.     }
    25. }
    27. let clock = new Clock(10,20);
    28. clock.tick()