未配置设备时的数据处理

src/views/bridgesConsole/bridgeMonitor/index.vue

      }
      if (arr === null || arr.length === 0) {
        that.progressShow = false
        that.$alert('该桥梁尚未配置设备', '提示', {
          type: 'warning',
          center: true,
          callback: action => {}
        })
        return
      }
      getMonitorByDay({ seq: arr, begin: sDate, end: eDate }, flag).then(res => {