使用watch监听对象里面值的变化

<div class="list">
      订单类型:
      <el-select v-model="getorderType" placeholder="请选择" @change="getchange">
           <el-option
                v-for="item in options1"
                :key="item.orderType"
                :label="item.label"
                :value="item.orderType">
           </el-option>
      </el-select>
</div>
<div class="list">
     操作对象:
     <el-select v-model="getworksRegion" placeholder="请选择" @change="getchange1">
          <el-option
                v-for="item in options6"
                :key="item.worksRegion"
                :label="item.label"
                :value="item.worksRegion">
          </el-option>
     </el-select>
</div>

  data() {
    return {
      verifyData: this.propData,
      editBoxShow: false,
      options1: [{
        orderType: '1',
        label: '首次出售'
      },{
        orderType:"2",
        label: "二次及以上挂售"
      }
      ],
      options2: [{
        worksRegion: '0',
        label: '原创作品'
      },{
        worksRegion:"1",
        label: "首页大IP"
      },
        {
          worksRegion:"3",
          label: "盲盒"
        }
      ],
      options5: [{
        worksRegion: '0',
        label: '原创作品'
      },{
        worksRegion:"1",
        label: "首页大IP"
      },{
          worksRegion:"2",
          label: "官方藏品"
        },
        {
          worksRegion:"3",
          label: "盲盒"
        }
      ],
      options6:[],
     
      queryParams:{
        id:"",
        orderType:'',//1 正常订单(首次出售), 2 挂售订单(二次及以上挂售)
        worksRegion:"",// 0 原创 1 平台首发 2 官方藏品 3 盲盒
      },
      getorderType:"",
      getworksRegion:"",
    };
  },

  watch:{
    'queryParams.orderType':function (newName,oldName){
      if(newName==1){
        this.options6 = this.options2
      }else if(newName==2){
        this.options6 = this.options5
      }
    }
  },

  watch:{
    'queryParams.orderType':function (newName,oldName){//newName 新数据 oldName 老数据
      
    }
  },

watch: {
    obj: {
      handler(newValue, oldValue) {
        console.log(newValue.id);
        this.formData.fid = newValue ? newValue.id : 0;
      },
      deep: true,
      immediate: true
    }
  },