console 命令行工具 X clear
console
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=, initial-scale=">
	<meta http-equiv="X-UA-Compatible" content="">
	<title>test</title>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
</head>
<body>
	<div id="root">
        Hello,{{name}}
        <br/>
        <input type="text" :value="val">
    </div>
    <script type="text/javascript">
        new Vue({
            el:"#root",
            data:{
                name:"cwz",
                val:"8520"
            }
        })
    </script>
</body>
</html>