<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>v-once的使用</title>
<script src="vue.js"></script>
</head>
<body>
<div id="lantian">
<h1>{{title}}</h1>
<!--v-once：数据只绑定一次，不进行更新-->
<h3 v-once>{{title}}</h3>
<input type="text" v-model="title" />
</div>
<script>
var app=new Vue({
el:'#lantian',
data:{
title:"蓝天科技"
}
});
</script>
</body>
</html>