vant Area 省市区选择 取消按钮和确认按钮出不来，急急急!!!!

Question

<van-field placeholder="所在地区" @click="onSelAddr" v-model="addrInfo" :readonly="readonly"></van-field>        <van-popup v-model="show" position="bottom">             <van-area :area-list="areaList" @confirm="onAddrConfirm" @cancel="onAddrCancel" title="标题"/>         </van-popup>                          import AddressInfo from './../../../static/js/area.js'          methods:{                 onSelAddr(){   //选择地区                     this.show = true;                 },                 onAddrConfirm(val){  //确定选择                     this.show = false;                    this.addrInfo = val[0].name+ val[1].name +val[2].name                 },                 onAddrCancel(){  //取消选择                     this.show = false;                 }             },