<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.active {
width: 100px;
height: 100px;
border: 1px solid red;
}
.error {
background-color: orange;
}
.test {
color: green;
}
.base {
font-size: 28px;
}
</style>
</head>
<body>
<div id="app">
<div v-bind:class="[activeClass,errorClass,{test:isTest}]">
我是歌谣
</div>
<div v-bind:class='arrClasses'></div>
<div v-bind:class='objClasses'></div>
<button v-on:click="handle">切换</button>
<div class="base" v-bind:class='objClasses'></div>
</div>
<script type="text/javascript" src="./js/vue.js"></script>
<script>
/*
//对象绑定的值可以和数组结合使用
//class绑定的值可以简化操作
//默认的class如何处理
默认的class会保留
*/
var vm = new Vue({
//绑定的标签
el: '#app',
//自定义按键修饰符
data: {
activeClass: 'active',
errorClass: 'error',
isTest: true,
arrClasses: ['active', 'error'],
objClasses: {
active: true,
error: true
}
},
methods: {
handle: function() {
//控制isactive奇幻
this.activeClass = '';
this.errorClass = '';
isTest = true;
this.objClasses.error = false;
}
}
});
</script>
</body>
</html>
