v-bind：title="title"綁定之后，鼠標放上去沒有反應
?<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">???
????<title>屬性綁定和雙向數據綁定</title>
????<script?src="./vue.js"></script>
</head>
<body>
????<div?id?="root"></div>
????<div?v-bind:title="title">hello?world</div>
????<script>
????new?Vue({
????????el:"#root",
????????data:{
????????????title:"this?is?a?apple"
????????}
????})
????</script>
</body>
</html>
2021-06-10
解決啦，應該把
<div?v-bind:title="title">hello?world</div>
放在id為root的div中