倒计时-小程序版

 1 countDownCtrl() {
 2     let deadline = new Date(2019,5,25,19,30,0)//免费截止时间，月的下从0开始，模拟截止数据
 3     setInterval(() => {
 4         let curTime = new Date().getTime()
 5 
 6     　　let time =  deadline.getTime()-curTime  //剩余毫秒数
 7     　　let remainTime  = parseInt(time/1000) //总的剩余时间,以秒计
 8 
 9     　　let day = parseInt( remainTime/(24*3600) )//剩余天
10     　　let hour = parseInt( (remainTime-day*24*3600)/3600 )//剩余小时
11     　　let minute =  parseInt((remainTime-day*24*3600-hour*3600)/60)//剩余分钟
12     　　let sec = parseInt(remainTime%60)//剩余秒
13 
14     　　hour = hour < 10 ? ‘0‘ + hour : hour;
15     　　minute = minute < 10 ? ‘0‘ + minute : minute
16     　　sec = sec < 10 ? ‘0‘ + sec : sec
17     　　let countDownText = hour+ ":" +minute+ ":" +sec
18     　　this.countDown = countDownText;
19     　　this.$apply()
20    },1000); 
21}