<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Test Vue Input</title>
</head>
<body>
<div id="app-input">
<h3>
Testando inputs : {{message}}
</h3>
<input type="text" v-model="message" placeholder="Digite sua mensagem" >
</div>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<script>
var app = new Vue({
el: '#app-input',
data: {
message:''
}
})
</script>
</body>
</html>