<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>v-bind 指令 - IT书包(www.itshubao.com)</title>
<script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js"></script>
</head>
<body>
<div id="app">
<label for="r1">修改颜色</label><input type="checkbox" v-model="class1" id="r1">
<br><br>
<div v-bind:class="{'class1': class1}">
directiva v-bind:class
</div>
</div>
</body>
</html>
.class1{
background: #444;
color: #eee;
}
new Vue({
el: '#app',
data:{
class1: false
}
});