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;
                }
            },