使用vue根据状态添加列表数据和删除列表数据的实例_vue.js

<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>