<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Vue 测试实例 - 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"> <div v-bind:class="[activeClass, errorClass]"></div> </div> </body> </html>
.active { width: 100px; height: 100px; background: green; } .text-danger { background: red; }
new Vue({ el: '#app', data: { activeClass: 'active', errorClass: 'text-danger' } })