<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<input type="text" v-model="inputValue">
<button @click="press">press</button>
<ul>
<li v-for="item in list">{{item}}</li>
</ul>
</div>
<script>
const app = new Vue({
el:'#app',
data:{
list:['第一','第二'],
inputValue:''
},
methods:{
press: function () {
// alert("press")
this.list.push(app.$data.inputValue)
this.inputValue = ''
}
}
})
</script>
</body>
</html>