菜鸟学堂
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源代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Vue 测试实例 - 菜鸟学堂()</title> <script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js"></script> <style> .active { width: 100px; height: 100px; background: green; } .text-danger { background: red; } </style> </head> <body> <div id="app"> <div v-bind:class="classObject"></div> </div> <script> new Vue({ el: '#app', data: { isActive: true, error: null }, computed: { classObject: function () { return { active: this.isActive && !this.error, 'text-danger': this.error && this.error.type === 'fatal', } } } }) </script> </body> </html>
运行结果
在线运行
菜鸟学堂 edu.jb51.net