Vue学习记录-基本插值，v-bind初步

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    [v-cloak]{
      display: none;
    }
  </style>
</head>
<body>
  <div id="app" v-cloak> 
    <h2 v-once>{{message}},vue</h2>
    <h2 v-html='url'></h2>
    <h2 v-text='message'>vue</h2>
    <!-- v-text会覆盖 -->
    <h2 v-pre>{{message}}</h2>
  </div>
  <script src="js/vue.js"></script>
  <script>
    // 在vue解析前，div中有一个属性v-cloak
    // 在vue解析后，div中无属性v-cloak
    const app = new Vue({
      el: '#app',
      data: {
        message:'hello',
        url: '<a href="">a</a>'
      }
    })
  </script>
</body>
</html>

v-bind初步：

 <div id="app">
    <img v-bind:src="imgURL" alt="">
  </div>
  <script src="js/vue.js">
  </script>
  <script>
     const app = new Vue({
        el: '#app',
        data: {
          imgURL: 'https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=404575795,2376485523&fm=26&gp=0.jpg'

        }
     })
  </script>