<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>待办列表</title> <script src="js/vue.js"></script> </head> <body> <div id="todolistHome"> <div> //获取焦点主要就是定义一个ref <input v-model="inputvalue" ref="inputVal"/> <button @click="addItem">提交</button> </div> <ul> <ul> <li v-for="(item,index) of list" :key="index">{{item}}</li> </ul> </ul> </div> <script> var todolistApp = new Vue({ el:'#todolistHome', data:{ inputvalue:"", list:[], picFocusStatus:true }, methods:{ addItem:function(){ this.list.push(this.inputvalue); this.inputvalue = ""; //然后调用focus方法 this.$nextTick(()=>{ this.$refs.inputVal.focus() }) } } }) </script> </body> </html>