微信小程序动态显示项目倒计时效果

<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);
},