v-model绑定 select 的代码实例 

<body>

  <div id="app">
    <!-- select的单选 -->
    <select v-model="fruit">
      <option value="apple">苹果</option>
      <option value="orange">橘子</option>
      <option value="banana">香蕉</option>
    </select>
    <h2>单选: {{fruit}}</h2>
    <hr>
    
    <!-- select的多选 -->
    <select multiple size="3" v-model="fruits">
      <option value="apple">苹果</option>
      <option value="orange">橘子</option>
      <option value="banana">香蕉</option>
    </select>
    <h2>多选: {{fruits}}</h2>
  </div>
  
  <script src="../lib/vue.js"></script>
  <script>
    // 1.创建app
    const app = Vue.createApp({
      // data: option api
      data() {
        return {
          fruit: "orange",
          fruits: []
        }
      },
    })

    // 2.挂载app
    app.mount("#app")
  </script>
</body>

 

posted @ 2022-08-17 14:45  杨建鑫  阅读(99)  评论(0)  编辑  收藏  举报