js时间戳转换为日期格式

gettime(dt) {dt = Number(dt);//时间戳十三位let time = new Date(dt * 1000);let y = time.getFullYear();let m = time.getMonth() + 1;let d = time.getDate();let h = time.getHours();let mm = time.getMinutes();// let s = time.getSeconds();return y + '-' + this.addtime(m) + '-' + this.addtime(d) + ' ' + this.addtime(h) + ':' + this.addtime(mm);},addtime(m) {return m < 10 ? '0' + m : m;}