Vue.js v-model实现input双向数据绑定示例

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>www.jb51.net vue.js数据双向绑定</title>
  <style>
  </style>
  <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script>
  <script>
    window.onload=function(){
      new Vue({
        el:'#box',//这里放的是选择器
        data:{
          msg:'welcome vue'
        }
      });
    };
  </script>
</head>
<body>
  <div id="box">
    <input type="text" v-model="msg">
    <br>
    {{msg}}
  </div>
</body>
</html>