Vue Day1【课堂案例】

image

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <h1>小黑的书架</h1>
    <ul>
      <li v-for="item in list" :key="item.id">
        <span>{{ item.name }}</span>
        <span>{{ item.author }}</span>
        <!-- 注册id事件，通过 id 进行删除数组中的 对应项 -->
        <button @click="del(item.id)">删除</button>
      </li>
    </ul>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {
        list: [
          { id: 1, name: '《红楼梦》', author: '曹雪芹' },
          { id: 2, name: '《西游记》', author: '吴承恩' },
          { id: 3, name: '《水浒传》', author: '施耐庵' },
          { id: 4, name: '《三国演义》', author: '罗贯中' }
        ]
      },
      methods: {
        del(id) {
          // console.log('删除id')
          // filter 过滤器 会创建一个新的数组，保留满足条件的，这点要记住,并且是浅拷贝
          this.list = this.list.filter(item => item.id !== id)
        }
      }
    })
  </script>
</body>

</html>
posted @ 2025-08-24 21:00  岑素月  阅读(8)  评论(0)    收藏  举报