<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 测试实例 - W3xue教程(w3xue.com)</title>
</head>
<style>
.cssclass{
background: #000;
color: #fff;
}
</style>
<body>
<script src="//unpkg.com/vue/dist/vue.js"></script>
<div id="app">
<label for="r1">修改颜色</label><input type="checkbox" v-model="vueclass" id="r1">
<br><br>
<div v-bind:class="{'cssclass': vueclass}">
w3xue教程网-w3xue.com
</div>
<script>
new Vue({
el: '#app',
data:{
vueclass: false
});
</script>
</body>
</html>