1.cdn引入
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<h2>哈哈哈</h2>
<p>我是内容, 呵呵呵呵</p>
<div id="app"></div>
<!-- CDN地址 -->
<script src="https://unpkg.com/vue@next"></script>
<script>
// 使用Vue
const app = Vue.createApp({
template: `<h2>Hello World</h2><span>呵呵呵</span>`
})
// 挂载
app.mount("#app")
</script>
</body>
</html>
2.本地下载vue.js引入
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app"></div>
<script src="./lib/vue.js"></script>
<script>
// 1.创建app
const app = Vue.createApp({
template: `<h1>Hello Vue</h1>`
})
// 2.挂载app
app.mount("#app")
</script>
</body>
</html>
