第一个VUE程序？

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

</head>
<body>

<div id="app">
        {{message}}
</div>


<!-- 1.导入Vue.js   -->
<script src="../js/vue.js"></script>
<script>
      var vm = new Vue({
            el:"#app",
            data:{
                message:"hello,vue!"
            }
      });


</script>

</body>
</html>