<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>P2 el掛載點</title>
</head>
<body>
<div id ="app" class="app">
{{massage}}
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
var app = new Vue({
// el :"#app", //id選擇器 唯一
// el: ".app" //class選擇器
el:"div", //div選擇器
data:
{
massage:"P2 el掛載點"
}
})
</script>
</body>
</html>