_deviceListPage() {
      let params = {
        pageSize: this.devicePageSize,
        pageNum: this.devicePageNum,
        kw: "", //查询条件（通配查询条件）
        type: this.deviceType, //设备类型（下拉）2.1.6接口获取
        code: this.deviceCode, //设备编号
        areaId: this.deviceareaId, //位置区域
        status: this.deviceStatus, //状态 1：在线（正常），0：未激活，2已离线，3.告警
        imei: "" //imei编号
      };
      deviceListPage(params).then(res => {
        if (res.code == 200) {
          this.devicePageTotal = res.body.total;
          this.devicePageSize = res.body.pageSize;
          this.devicePageNum = res.body.pageNum;
          this.devicePageTotalPages = parseInt(
            (this.devicePageTotal + this.devicePageSize - 1) /
              this.devicePageSize
          );
          if (this.devicePageTotal == 0) {
            // console.log("没有数据");
            //没有数据
            this.deviceListnodata = true;
            this.deviceListIsLoad = false;
            this.deviceListIsFinish = true;
            this.devicePageNum = 1;
            this.deviceTip = "暂无数据";
            return false;
          }
          this.deviceList = this.deviceList.concat(res.body.datas);
          // console.log(this.devicePageNum, this.devicePageTotalPages);
          if (this.devicePageNum == this.devicePageTotalPages) {
            //没有更多
            this.deviceListIsLoad = false;
            this.deviceListIsFinish = true;
            this.devicePageNum = 1;
            this.deviceTip = "没有更多了~";
            // console.log("没有更多了");
          } else {
            // console.log("下一页");
            //下一页
            this.deviceListIsLoad = true;
            this.deviceListIsFinish = false;
            this.devicePageNum++;
            this.deviceTip = "正在加载中~";
          }
          // console.log("deviceList", this.deviceList);
        } else {
          // this.deviceList = [];
          this.deviceListIsLoad = false;
          this.deviceListIsFinish = true;
          this.devicePageNum = 1;
          this.deviceTip = "数据加载失败~";
        }
      });
    },

devicePageSize: 10, //每页显示
      devicePageNum: 1, //当前页
      devicePageTotal: 0, //总条数
      devicePageTotalPages: 0, //总页数
      deviceListIsFinish: false, //是否加载完成
      deviceListIsLoad: false, //是否加载更多
      deviceListnodata: false, //是否有数据
      deviceTip: "",