/* limitCommodity是一個數組，返回的是商品對象，包含商品價格、商品結束時間、商品圖片等 */<block wx:for="{{limitCommodity}}" wx:key="{{item.id}}">  <commodityItem class="specialContent" goods="{{item}}" /></block>

Component({ properties: {  goods: Object }, data: { }, timer: null, /* 在組件實例進入頁面節點樹時執行，開始定時器 */ attached: function() {  if(this.timer) {   clearInterval(this.timer);  }  this.filterTime();  let that = this;    this.timer = setInterval(function () {   that.filterTime();  }, 1000) }, /* 在組件實例被從頁面節點樹移除時執行，將定時器清除 */ detached: function() {  clearInterval(this.timer);  this.timer = null; }, methods: {  /* 用于將時間戳轉換成自定義的時間格式 */  filterTime() {   let totalTime = new Date(parseInt(this.data.goods.endtime) * 1000) - new Date();   let days = parseInt(totalTime / 1000 / 60 / 60 / 24, 10);   let hours = parseInt(totalTime / 1000 / 60 / 60 % 24, 10);   let minutes = parseInt(totalTime / 1000 / 60 % 60, 10);   let seconds = parseInt(totalTime / 1000 % 60, 10);   let day = days >= 10 ? days : '0' + days;   day = day == 0 ? '' : day + '天';   let hour = hours >= 10 ? hours : '0' + hours;   let minute = minutes >= 10 ? minutes : '0' + minutes;   let second = seconds >= 10 ? seconds : '0' + seconds;   this.setData({    limitTime: day + hour + ":" + minute + ":" + second   })  }, }})

Component({ properties: {  limitCommodity:Array }, data: { }, timeOut:null, /* 在組件實例進入頁面節點樹時執行 */ attached(){  this.calculate(); }, /* 在組件實例被從頁面節點樹移除時執行，將定時器清除 */ detached(){  clearTimeout(this.timeOut);  this.timeOut = null; }, methods: {  filterTime(endtime) {   let totalTime = new Date(parseInt(endtime) * 1000) - new Date();   let days = parseInt(totalTime / 1000 / 60 / 60 / 24, 10);   let hours = parseInt(totalTime / 1000 / 60 / 60 % 24, 10);   let minutes = parseInt(totalTime / 1000 / 60 % 60, 10);   let seconds = parseInt(totalTime / 1000 % 60, 10);   let day = days >= 10 ? days : '0' + days;   day = day == 0 ? '' : day + '天';   let hour = hours >= 10 ? hours : '0' + hours;   let minute = minutes >= 10 ? minutes : '0' + minutes;   let second = seconds >= 10 ? seconds : '0' + seconds;   return day + hour + ":" + minute + ":" + second  },  calculate(){   let limitCommodity = this.data.limitCommodity;   for (let i = 0; i < limitCommodity.length;i++){    limitCommodity[i]['endtime_date'] = this.filterTime(limitCommodity[i]['endtime'])   }   this.setData({    limitCommodity   })   this.timeOut = setTimeout(()=>{    this.calculate();   },1000);  } }})