v-bind: 简写可省略不写
如 v-bind:class="" 简写 :class=""
首先创建一个样式文件style.css
body{
font-size:24px;
}
.active{
color:red;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>class绑定</title>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<link href="../vue_cli/css/style.css" rel="stylesheet">
</head>
<body>
<div id="myPage">
<div v-bind:class="{active:isActive}">测试文本内容</div>
<div :class="{active:isActive}">测试文本内容</div>
<button @click="btnclick">class绑定</button>
</div>
<script>
var myPage = new Vue({
el:'#myPage',
data:{
isActive:false
},
methods:{
btnclick:function()
{
//对当前值取反
this.isActive=!this.isActive;
}
}
})
</script>
</body>
</html>
效果图：
点击按钮后，效果展示：
