案例：Tab选项卡

标签： vue.js

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style type="text/css">
    
    .tab ul {
      overflow: hidden;
      padding: 0;
      margin: 0;
    }
    .tab ul li {
      box-sizing: border-box;
      padding: 0;
      float: left;
      width: 100px;
      height: 45px;
      line-height: 45px;
      list-style: none;
      text-align: center;
      border-top: 1px solid blue;
      border-right: 1px solid blue;
      cursor
    }
    .tab ul li:first-child {
      border-left: 1px solid blue;
    }
    .tab ul li.active {
      background-color: orange;
    }
    .tab div {
      width: 500px;
      height: 300px;
      display: none;
      text-align: center;
      font-size: 30px;
      line-height: 300px;
      border: 1px solid blue;
      border-top: 0px;
    }
    .tab div.current {
      display: block;
    }
  </style>
</head>
<body>
  <div id="app">

    <div class="tab">

      <ul>
        <li v-on:click='change(index)' :class='currentIndex==index?"active":""' :key='item.id' v-for='(item,index) in list'>{{item.title}}</li>
      </ul>

      <br>
      <div :class='currentIndex==index?"current":""' :key='item.id' v-for='(item, index) in list'>
        <img :src="item.path">
      </div>
    </div>

  </div>
  <script type="text/javascript" src="js/vue.js"></script>
  <script type="text/javascript">

    var vm = new Vue({
      el: '#app',
      data: {
        currentIndex: 0, // 选项卡当前的索引
        list: [{
          id: 1,
          title: 'apple',
          path: 'img/apple.png'
        },{
          id: 2,
          title: 'orange',
          path: 'img/orange.png'
        },{
          id: 3,
          title: 'lemon',
          path: 'img/lemon.png'
        }]
      },
      methods: {
        change: function(index){
          // 在这里实现选项卡切换操作：本质就是操作类名
          // 如何操作类名？就是通过currentIndex
          this.currentIndex = index;
        }
      }
    });
  </script>
</body>
</html>

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本文链接：https://blog.csdn.net/qq_39368007/article/details/105393025