微信小程序实现批量倒计时功能

<p class="promotion-label-tits">仅{{item.endtime}}</p>

//封装的倒计时方法
//批量倒计时
function grouponcountdown(that, end_time, param) {
 var EndTime = new Date(end_time).getTime();
 // console.log(EndTime);
 var NowTime = new Date().getTime();
 
 var total_micro_second = EndTime - NowTime;
 
 var groupons = that.data.groupon;
 // console.log(groupons);
 groupons[param].endtime = dateformats(total_micro_second);
 if (total_micro_second <= 0) {
 groupons[param].endtime = "已结束"
 }
 that.setData({
 groupon: groupons
 })
 setTimeout(function () {
 grouponcountdown(that, end_time, param);
 }, 1000)
}
 
// 时间格式化输出，每1s都会调用一次
function dateformats(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);
 var hrStr = hr.toString();
 if (hrStr.length == 1) hrStr = '0' + hrStr;
 
 // 分钟
 var min = Math.floor(second / 60 % 60);
 var minStr = min.toString();
 if (minStr.length == 1) minStr = '0' + minStr;
 
 // 秒
 var sec = Math.floor(second % 60);
 var secStr = sec.toString();
 if (secStr.length == 1) secStr = '0' + secStr;
 
 if (day <= 1) {
 return "剩 " + hrStr + ":" + minStr + ":" + secStr;
 } else {
 return "剩 " + day + " 天 " + hrStr + ":" + minStr + ":" + secStr;
 }
}
//end
 
var app=getApp()
Page({
 
 /**
 * 页面的初始数据
 */
 data: {
  collageTeamlist : {}
 },
 
 /**
 * 生命周期函数--监听页面加载
 */
 onLoad: function (options) {
  app.showLoading();
  var that = this
  
  wx.request({
   success:function(res){
    var grouponList = request.data.collageTeamlist
    // console.log(grouponList);
    for (var i = 0; i < grouponList.length; i++) {
     var lack_num = grouponList[i].create_num - grouponList[i].current_num
     grouponList[i].lack_num = lack_num
    }
 
    that.setData({
     groupon: grouponList
    })
    var data = that.data.groupon
    //列表获取到数据进行遍历
    for (var i = 0; i < data.length; i++) {
     var end_time = data[i].end_time.replace(/-/g, '/')
     grouponcountdown(that,end_time, i)
    }
   },
  })
 },