<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../vue.js"></script>
    <!--    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.14/dist/vue.js"></script>-->
</head>
<body>
    <div id="app" >
        <p>{{message}}</p>
    </div>
</body>
<script>
    //new Vue
    // el 对于页面内容id
    // data 数据  json
    // {{}} 数据中的key
    var vue = new Vue({
        el: "#app",
        data: {
            message:"hello world"
        }
    })
</script>
</html>