<title>Vue 测试实例 - W3xue教程(w3xue.com)</title>
<script src="//unpkg.com/vue/dist/vue.js"></script>
<div v-bind:class="classObject"></div>
classObject: function () {
active: this.isActive && !this.error,
'text-danger': this.error && this.error.type === 'fatal',