键盘码，归类到vue

vue -on事件可以侦探键盘，这里放到vue不放es
 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 6     <meta http-equiv="X-UA-Compatible" content="ie=edge">
 7     <title>v-on</title>
 8     <script type="text/javascript" src="../assets/js/vue.js"></script>
 9 </head>
10 <body>
11     <h1>v-on实例</h1>
12     <hr>
13     <div id="app">
14    本场得分：{{score}} <span v-text="score"></span><div v-text="score"></div>
15    <p><button v-on:click="add">加分</button></p>
16    <p><button @click="sub">减分</button></p>
17    <input type="text" v-on:keyup.13="onEnter" v-model="score2">
18    <div v-on:mouseover="change">{{omo}}</div>
19     </div>
20     <script type="text/javascript">
21         var app = new Vue({
22             el:'#app',
23             data:{
24                 score:2,
25                 score2:1,
26                 omo:'666666'
27             },
28             methods:{
29                 add:function(){
30                     this.score=this.score*parseInt(this.score2)
31                 },
32                 sub:function(){
33                     this.score--
34                 },
35                 onEnter:function(){
36                     this.score=this.score+parseInt(this.score2)
37                 },
38                 change:function(){
39                     this.omo='11111'
40                 }
41 
42             }
43         })
44             
45         
46     </script>
47 </body>
48 </html>