console 命令行工具 X clear

console

var vm = new Vue({
  el: '#example',
  data: {
    message: 'Hello 111!'
  },
  computed: {
    // 计算属性的 getter
    reversedMessage: function() {
      // `this` 指向 vm 实例
      return this.message.split('').reverse().join('')
    }
  }
})

<html>
    <head>
        <link rel="stylesheet" href="index.css">
        <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    </head>
    <body>
        
       <div id="example">
        <p>Original message: "{{ message }}"</p>
        <p>Computed reversed message: "{{ reversedMessage }}"</p>
      </div>
        
        <script src="index.js"></script>
    </body>
</html>