Vue组件注册注意事项上 

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 
 4 <head>
 5     <meta charset="UTF-8">
 6     <meta http-equiv="X-UA-Compatible" content="IE=edge">
 7     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 8     <title>组件注册注意</title>
 9 </head>
10 
11 <body>
12     <div id="app">
13         <button-counter></button-counter>
14         <button-counter></button-counter>
15         <button-counter></button-counter>
16     </div>
17 </body>
18 <script src="../js/vue.js"></script>
19 <script>
20     /*
21     组件注意事项
22     1.组件参数的data值必须是函数
23     2.组件模板必须是单个根元素
24     3.组件模板的内容可以是模板字符串
25     */
26     Vue.component('button-counter', {
27         data: function () {
28             return {
29                 count: 0
30             }
31 
32         },
33         template: `
34             <div>
35                 <button @click='handle'>点击了{{count}}</button>
36                 <button>测试123</button>
37             </div>
38         `,
39         methods: {
40             handle: function () {
41                 this.count += 2;
42             }
43         }
44     })
45 
46     var vm = new Vue({
47         el: '#app',
48         data: {
49 
50         }
51     })
52 </script>
53 
54 </html>

 

posted @ 2021-09-11 16:22  丁帅帅dss  阅读(38)  评论(0)    收藏  举报