使用vue根据状态添加列表数据和删除列表数据的实例

<template>
 <div>
 <div v-for="obj of a" @click="sel(obj)">
 {{obj.name}} <span v-if="!obj.select">+</span><span v-else>-</span>
 </div>
 <hr>
 <div>
 <div v-for="(obj,index) in temp" @click="cel(obj,index)">{{obj}}</div>
 </div>
 </div>
</template>

<script>
export default {
 methods: {
 sel(obj){
 obj.select = !obj.select
 if(obj.select){
 this.temp.push(obj)
 }else{
 obj.select = !obj.select
 } 
 },
 cel(obj,index){
 obj.select = !obj.select;
 console.log(index)
 this.temp.splice(index,1); 
 }
 },
 data(){
 return {
 temp:[],
 a:[{
 "code": "1",
 "name": "1",
 "cityId": 8,
 "regionId": null,
 "blockId": null,
 "cityName": null,
 "regionName": null,
 "blockName": null,
 "address": "刀茅巷216号",
 "buildingNum": null,
 "unitNum": null,
 "houseNum": null,
 "completeTime": null,
 "developer": null,
 "id": null,
 "pinYin": null,
 "pinYinFirst": null,
 "pinYinShort": null,
 select:false
 },{
 select:false,
 "code": "2",
 "name": "2",
 "cityId": 8,
 "regionId": null,
 "blockId": null,
 "cityName": null,
 "regionName": null,
 "blockName": null,
 "address": "刀茅巷216号",
 "buildingNum": null,
 "unitNum": null,
 "houseNum": null,
 "completeTime": null,
 "developer": null,
 "id": null,
 "pinYin": null,
 "pinYinFirst": null,
 "pinYinShort": null
 },{
 select:false,
 "code": "3",
 "name": "3",
 "cityId": 8,
 "regionId": null,
 "blockId": null,
 "cityName": null,
 "regionName": null,
 "blockName": null,
 "address": "刀茅巷216号",
 "buildingNum": null,
 "unitNum": null,
 "houseNum": null,
 "completeTime": null,
 "developer": null,
 "id": null,
 "pinYin": null,
 "pinYinFirst": null,
 "pinYinShort": null
 }],
 }
 }
}
</script>