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://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script> </head> <body> <div id="components-demo3" class="demo"> <button-counter2></button-counter2> <button-counter2></button-counter2> <button-counter2></button-counter2> </div> <script> var buttonCounter2Data = { count: 0 } Vue.component('button-counter2', { /* data: function () { // data 选项是一个函数，组件不相互影响 return { count: 0 } }, */ data: function () { // data 选项是一个对象，会影响到其他实例 return buttonCounter2Data }, template: '<button v-on:click="count++">点击了 {{ count }} 次。</button>' }) new Vue({ el: '#components-demo3' }) </script> </body> </html>
运行结果