微信小程序动态显示项目倒计时的效果

<p>
<block wx:if="{{total_micro_second<=0}}">剩余时间：已经截止</block>
<block wx:if="{{clock!='已经截止'}}">剩余时间：{{clock}}</block>
</p>

function countdown(that) {
 var EndTime = that.data.end_time || [];
 var NowTime = new Date().getTime();
 var total_micro_second = EndTime - NowTime || [];
 console.log('剩余时间：' + total_micro_second);
  // 渲染倒计时时钟
  that.setData({
  clock: dateformat(total_micro_second)
  });
  if (total_micro_second <= 0) {
  that.setData({
   clock: "已经截止"
  });
  //return;
  }
  setTimeout(function () {
  total_micro_second -= 1000;
  countdown(that);
  }
  , 1000)
 }

 // 时间格式化输出，如11:03 25:19 每1s都会调用一次
 function dateformat(micro_second) {
  // 总秒数
  var second = Math.floor(micro_second / 1000);
  // 天数
  var day = Math.floor(second/3600/24);
  // 小时
  var hr = Math.floor(second/3600%24);
  // 分钟
  var min = Math.floor(second/60%60);
  // 秒
  var sec = Math.floor(second%60);
  return day + "天" + hr + "小时" + min + "分钟" + sec+"秒";
 }

Page({

 /**
 * 页面的初始数据
 */
 data: {
 id:'',
 result:[],
 end_time:'',
 clock:''
 },/**
 * 生命周期函数--监听页面加载
 */
 onLoad: function (options) {
 var that = this;
 wx.request({
  url: 'https://m.******.com/index.php/Home/Xiaoxxf/activity_detail?a_id='+options.id,//不含富文本html
  data: {},
  method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
  header: {
  'Content-Type': 'application/json'
  },
  success: function (res) {
  that.setData({
   common: res.data, //一维数组，全部数据
   end_time: res.data.end_time //项目截止时间，时间戳，单位毫秒
  })
  console.log(that.data.common);
  console.log('结束时间：' + that.data.end_time);
  },
  fail: function (res) { },
  complete: function (res) { },
 }), 
//调用上面定义的递归函数，一秒一刷新时间
 countdown(that);
},