怎么可以省去大量的switch语句，省去switch语句

没改良之前

watch: {
    
    current: {
    
      handler: function(val) {
    
        switch (val) {
    
          case this.$t('hcc_maintenance_driving_time'):
            this.statisticsTitle = this.$t('hcc_maintenance_driving_time_statistics');
            this.appPararms.VehicleBIType = 0;
            break;
          case this.$t('hcc_maintenance_driving_distance'):
            this.statisticsTitle = this.$t('hcc_maintenance_driving_distance_statistics');
            this.appPararms.VehicleBIType = 1;
            break;
          case this.$t('hcc_maintenance_driving_overspeed'):
            this.statisticsTitle = this.$t('hcc_maintenance_driving_overspeed_statistics');
            this.appPararms.VehicleBIType = 2;
            break;
          case this.$t('hcc_maintenance_driving_safety'):
            this.statisticsTitle = this.$t('hcc_maintenance_driving_safety_statistics');
            this.appPararms.VehicleBIType = 3;
            break;
          default:
            break;
        }
      },
      immediate: true
    }
  },

改良后：

data() {
    
  return {
    
  jumpParamsObj: {
    
        [this.$t('hcc_maintenance_driving_time')]: {
    statisticsTitle: this.$t('hcc_maintenance_driving_time_statistics'), VehicleBIType: 0},
        [this.$t('hcc_maintenance_driving_distance')]: {
    statisticsTitle: this.$t('hcc_maintenance_driving_distance_statistics'), VehicleBIType: 1},
        [this.$t('hcc_maintenance_driving_overspeed')]: {
    statisticsTitle: this.$t('hcc_maintenance_driving_overspeed_statistics'), VehicleBIType: 2},
        [this.$t('hcc_maintenance_driving_safety')]: {
    statisticsTitle: this.$t('hcc_maintenance_driving_safety_statistics'), VehicleBIType: 3}
      }
  }
}
watch: {
    
    current: {
    
      handler: function(val) {
    
        this.statisticsTitle = this.jumpParamsObj[val].statisticsTitle;
        this.appPararms.VehicleBIType = this.jumpParamsObj[val].VehicleBIType;
      },
      immediate: true
    }
  },