<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>hello world</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="app">{{content}}</div>
<script>
var app=new Vue({
el:'#app',
data:{
content:'hello world'
}
})
setTimeout(function(){
app.$data.content="bye world"
},1000)
</script>
</body>
</html>
