源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Vue 测试实例 - 开源教程(ossoft.cn)</title> <script src="https://unpkg.com/vue@next"></script> </head> <body> <div id="app"> <ul> <li v-for="n in evenNumbers">{{ n }}</li> </ul> </div> <script> const app = { data() { return { numbers: [ 1, 2, 3, 4, 5 ] } }, computed: { evenNumbers() { return this.numbers.filter(number => number % 2 === 0) } } } Vue.createApp(app).mount('#app') </script> </body> </html>
运行结果