前端学习（2498）：双向数据绑定

index.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link  type="text/css" rel="stylesheet" href="./main.css">
    <script src="https://unpkg.com/vue"></script>

    <title>Document</title>
</head>
<body>
<!--vue app是根容器-->
<div id="vue-app">
<h1>键盘 Events</h1>
    <label>姓名:{{name}}</label>
    <input ref="name" type="text" v-on:keyup="logName">
    <label>年龄:{{age}}</label>
    <input ref="age" type="text" v-on:keyup="logAge">
</div>
<script src="./app.js"></script>
</body>
</html>

app.js

new Vue({
    el:"#vue-app",
    data:{
        name:18,
        age:0,
    },
    methods:{
        logName:function (){
            console.log("你正在输入名字"+this.$refs.name.value)
        },
        logAge:function (){
            console.log("你正在输入年龄"+this.$refs.age.value)
        }
     /*   updatexy(event){
            this.x=event.offsetX,
                this.y=event.offsetY
        },
        stopMoving(event){
            event.stopPropagation()
        }*/
    }
})