Page({  /**  * 頁面的初始數據  */ data: {  countdown:'',  endDate2: '2018-08-08 11:41:00' }, /**  * 生命周期函數--監聽頁面加載  */ onLoad: function (options) {  var that = this;  that.countTime() }, countTime() {  var that = this;  var date = new Date();  var now = date.getTime();  var endDate = new Date(that.data.endDate2);//設置截止時間  var end = endDate.getTime();  var leftTime = end - now; //時間差                 var d, h, m, s, ms;  if (leftTime >= 0) {   d = Math.floor(leftTime / 1000 / 60 / 60 / 24);   h = Math.floor(leftTime / 1000 / 60 / 60 % 24);   m = Math.floor(leftTime / 1000 / 60 % 60);   s = Math.floor(leftTime / 1000 % 60);   ms = Math.floor(leftTime % 1000);   ms = ms < 100 ? "0" + ms : ms   s = s < 10 ? "0" + s : s   m = m < 10 ? "0" + m : m   h = h < 10 ? "0" + h : h   that.setData({    countdown: d + "：" + h + "：" + m + "：" + s + ":" + ms,   })   //遞歸每秒調用countTime方法，顯示動態時間效果  setTimeout(that.countTime, 100);  } else {   console.log('已截止')   that.setData({    countdown:'00:00:00'   })  }   },})

<view>  <text>{{countdown}}</text></view>