v-once
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<h1>{{message}}</h1>
<h1 v-once>{{message}}</h1>
</div>
<script src="../js/vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
message: '你好啊',
firstName: 'kobe',
lastName: 'bryant',
counter: 100
}
})
</script>
</body>
</html>
然后配合浏览器上的开发者设置
这个发生了改变