computed计算属性

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>computed计算属性</title>
</head>
<body>
    <div id="app">
         <input type="text" v-model='text'>  
         <br>
         <span >{{toUp}}</span>   
    </div>
 
    <script src="../node_modules/vue/dist/vue.js"></script> 
    <script> 
 
        let vm = new Vue({
            el: "#app",
            data: {
              text:''  
            },
            computed:{
                toUp(){ 
                    return 'eric' + this.text
                }
            } 
        });
  
    </script>
 
</body>
</html>
posted @ 2021-02-26 17:04  13522679763-任国强  阅读(35)  评论(0)    收藏  举报