<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>操作元素属性</title>
<script src="vue.js"></script>
</head>
<body>
<style>
.red{
color: red;
}
.hd{
color: green;
}
</style>
<div id="lantian">
<h1 :class="'hd'">hdphp.com</h1>
<h1 :class="hd">hdphp.com</h1>
</div>
<script>
var app=new Vue({
el:'#lantian',
data:{
hd:'red'
}
});
</script>
</body>
</html>