二手车交易，所在城市只能选择两级

src/views/secondHandCar/carSource.vue

@@ -134,7 +134,7 @@
         closeable
         position="bottom"
     >
-      <van-area title="标题" :area-list="areaList" closeable="true" :value="form.areaCode ? String(form.areaCode) : ''"
+      <van-area title="标题" :area-list="areaList" :columns-num="2"  closeable="true" :value="form.areaCode ? String(form.areaCode) : ''"
                 @cancel="areaShow = false" @confirm="confirmHandle"/>
     </van-popup>
  </div>
@@ -244,12 +244,11 @@ export default {
     },
     confirmHandle(val){
       let data=val.length
-      // console.log("val",val)
       this.form.areaCode=val[data - 1]?.code
       if(val[0].name.includes('市')){
-        this.areaName=val[1].name + val[2].name
+        this.areaName=val[0].name
       }else{
-        this.areaName=val[0].name +val[1].name + val[2].name
+        this.areaName=val[0].name +val[1].name
       }
       this.areaShow=false
     },