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vue同时设置多个倒计时 vue实现同时设置多个倒计时

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html如下:

<div class="home">
    <tbody>
      <tr v-for="(item, index) in bargainGoods" :key="index">
        <td v-text="item.down + Djs_timeList(item.countDown)"></td>
      </tr>
    </tbody>
</div>

js如下:

export default {
  data() {
    return {
      bargainGoods: [],
      total: 0,
      page: 1,
      serverTime: 0,
      timer: ""
      // hostUrl: this.$hostUrl
    };
  },
  //用于数据初始化
  created: function() {
    // 获取数据
    this.goods();
    // 获取服务器时间
    this.findServiceTime();
  },
  methods: {
    goods: function() {
      var _this = this;
      _this.$axios({
        url: "goods/pageGoods",
        data: {
          current: -1,
          activityStatus: "",
          limit: -1,
          status: "SALE"
        },
        success: response => {
          _this.bargainGoods = response.items;
          _this.Djs_time();// 调用定时器
          //  以下是我处理的后台返回数据   开始时间和结束时间,页面显示用的
          if (_this.bargainGoods.length != 0) {
            for (var key in _this.bargainGoods) {
              var hour = 0;
              var startime = 0;
              if (_this.bargainGoods[key] != null) {
                _this.bargainGoods[key].countDown = "";
                _this.bargainGoods[key].down = "";

                // 结束时间
                hour = _this.bargainGoods[key].overTime;
                startime = _this.bargainGoods[key].activityStartTime;
                hour = hour.replace(/-/g, "/");
                hour = new Date(hour).getTime();
                startime = startime.replace(/-/g, "/");
                startime = new Date(startime).getTime();
                // 如果结束时间大于当前时间

                if (hour > _this.serverTime && startime < _this.serverTime) {
                  var hourtime = hour - _this.serverTime;
                  if (hourtime > 0) {
                    _this.bargainGoods[key].down = "结束倒计时:";
                    _this.bargainGoods[key].countDown =
                      _this.bargainGoods[key].overTime;
                  }
                } else if (startime > _this.serverTime) {
                  var starhourtime = startime - _this.serverTime;
                  if (starhourtime > 0) {
                    _this.bargainGoods[key].down = "开始倒计时:";
                    _this.bargainGoods[key].countDown =
                      _this.bargainGoods[key].activityStartTime;
                  }
                } else {
                  _this.bargainGoods[key].down = "已结束";
                  _this.bargainGoods[key].countDown = "";
                }
                // console.log(_this.bargainGoods);
              }
            }
            _this.bargainGoods = _this.bargainGoods;
          }
        }
      });
    },
    // 获取服务器时间
    findServiceTime() {
      var _this = this;
      _this.$axios({
        url: "serverTime/getDateTime",
        success: function(res) {
          _this.serverTime = res.item;
        }
      });
    },

    Djs_time: function() {
      this.timer = setInterval(() => {
        this.serverTime = this.serverTime + 1000;
      }, 1000);
    },

    Djs_timeList: function(itemEnd) {
      //  此处 itemEnd 的日期是年月日时分秒
      var endItem = new Date(itemEnd).getTime(); //获取列表传的截止时间,转成时间戳
      var nowItem = this.serverTime; //获取当前时间
      var rightTime = endItem - nowItem; //截止时间减去当前时间
      if (rightTime > 0) {
        //判断剩余倒计时时间如果大于0就执行倒计时否则就结束
        var dd = Math.floor(rightTime / 1000 / 60 / 60 / 24);
        var hh = Math.floor((rightTime / 1000 / 60 / 60) % 24);
        var mm = Math.floor((rightTime / 1000 / 60) % 60);
        var ss = Math.floor((rightTime / 1000) % 60);
        var showTime = dd + "天" + hh + "小时" + mm + "分" + ss + "秒";
      } else {
        var showTime = "";
      }
      return showTime;
    },

  },
    //离开页面后清除定时器
  destroyed() {
    clearInterval(this.timer);
  }
};

效果如下:

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