vant填坑之area

转载：
https://www.jianshu.com/p/770a54e1a39c

<van-area
          :area-list="arrylist"
          :columns-num="1"
          @change="onChange"
          :value="130000"
        />

    onChange(picker, value, index) {
      // <!--打印看下对应值-->
      console.log("当前值：" , value , "当前索引：" ,index);
      //   <!--因为解析过来的数据是数组而carmodel定义字符串-->
      let areaName = "";
      for (var i = 0; i < value.length; i++) {
        areaName = areaName + value[i].name + " ";
      }
      console.log(areaName);
      
    //   this.carmodel = areaName;
    },