01b_helloworld2.html

<!DOCTYPE html>
<html lang="pt-br">
<head>
  <meta charset="utf-8">
  <title>Meu primeiro aplicativo Vue</title>
  <script src="https://unpkg.com/vue"></script>
</head>
<body>
  <div id="app">
    YOYOYO {{ message }}
  </div>

  <script>

    var meudata = {
      message: 'Olá vue',
    };

    var app = new Vue({
      el: '#app',
      data: meudata,
    });
  </script>
</body>
</html>