微信小程序 拼团商品倒计时（拼团列表、拼团商品详情）

直接上图：

拼团列表、拼团详情-倒计时

                                  

//单个倒计时，适用用于单个商品的倒计时

js文件：

//倒计时
function countDown(that) {
    var endTime = new Date(that.data.end_time.replace(/-/g, '/')).getTime();
    var nowTime = new Date().getTime();
    var total_second = endTime - nowTime;
    that.setData({
        clock: dateformat(total_second)
    });
    if (total_second <= ) {
        that.setData({
            clock: "已结束"
        });
    }
    setTimeout(function () {
        countDown(that);
    }, )
}
// 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 / );
    // 天数
    var day = Math.floor(second /  / );
    // 小时
    var hr = Math.floor(second /  % );
    var hrStr = hr.toString();
    if (hrStr.length == ) hrStr = '' + hrStr;  

    // 分钟
    var min = Math.floor(second /  % );
    var minStr = min.toString();
    if (minStr.length == ) minStr = '' + minStr; 

    // 秒
    var sec = Math.floor(second % );
    var secStr = sec.toString();
    if (secStr.length == ) secStr = '' + secStr; 

    if (day <= ) {
        return "剩 " + hrStr + ":" + minStr + ":" + secStr;
    } else {
        return "剩 " + day + " 天 " + hrStr + ":" + minStr + ":" + secStr;
    }
}
var app=getApp()

Page({

    /**
     * 页面的初始数据
     */
    data: {
        vieComplete: false,
        spellDetail:{},
        end_time: '',
        clock: '',
        servicePhone: ''//咨询电话
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
        var that = this

        wx.request({
            url: app.apiRoutes.getGroupBuyDetail,
            header: app.apiHeader,
            data:{
                id:options.id
            },
            success: function (res) {
                var data=res.data.data
                var lack_num = data.create_num - data.current_num
                data.lack_num = lack_num
                var description = data.goods.description == null ? '' : data.goods.description;
                WxParse.wxParse('description', 'html', description, that, );
                that.setData({
                    spellDetail:data,
                    end_time: data.end_time
                })

                //倒计时
                countDown(that);
            }
        })

})

//适用于商品列表倒计时/** * end_time int 结束时间 * param int 数组键 */

js文件：

//倒计时
function grouponcountdown(that, end_time, param) {
    var EndTime = new Date(end_time).getTime();
    var NowTime = new Date().getTime();

    var total_micro_second = EndTime - NowTime;

    var groupons = that.data.groupon;
    groupons[param].endtime = dateformat(total_micro_second);
    if (total_micro_second <= ) {
        groupons[param].endtime = "已结束"
    }
    that.setData({
        groupon: groupons
    })
    setTimeout(function () {
        grouponcountdown(that, end_time, param);
    }, )
}

// 时间格式化输出，每1s都会调用一次
function dateformat(micro_second) {
    // 总秒数
    var second = Math.floor(micro_second / );
    // 天数
    var day = Math.floor(second /  / );
    // 小时
    var hr = Math.floor(second /  % );
    var hrStr = hr.toString();
    if (hrStr.length == ) hrStr = '' + hrStr;

    // 分钟
    var min = Math.floor(second /  % );
    var minStr = min.toString();
    if (minStr.length == ) minStr = '' + minStr;

    // 秒
    var sec = Math.floor(second % );
    var secStr = sec.toString();
    if (secStr.length == ) secStr = '' + secStr;

    if (day <= ) {
        return "剩 " + hrStr + ":" + minStr + ":" + secStr;
    } else {
        return "剩 " + day + " 天 " + hrStr + ":" + minStr + ":" + secStr;
    }
}

var app=getApp()
Page({

  /**
   * 页面的初始数据
   */
  data: {
      groupon:[]
  },
  //拼团详情
  toSpellingDetail:function(e){
    wx.navigateTo({
        url: '/pages/spelling/spellingDetail?id='+e.currentTarget.id,
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
      app.showLoading();
      var that = this

      wx.request({
          url: app.apiRoutes.getGroupBuyList,
          header: app.apiHeader,
          success:function(res){
              var grouponList=res.data.data
              for (var i = ; 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 = ; i < data.length; i++) {
                  var end_time = data[i].end_time.replace(/-/g, '/')
                  grouponcountdown(that,end_time, i)
              }
              app.hideLoading();
          },
          fail:function(){
              app.hideLoading();
          }
      })
  },

本文参考于：https://blog.csdn.net/con_knife/article/details/79506327