Vue项目变换选项卡 

<!-- //模板式编程 -->
<!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: pointer;
        }
        
        .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>
                <!-- :class='"currentIndex == index?"active":"'  -->
                <li @click = 'change(index)' :class='currentIndex == index?"active":""' :key = 'item.id' v-for='(item,index) in list'>{{item.title}}</li>
            </ul>
            <!-- :class='currentIndex == index?"current":""' -->
            <div  :key = 'item.id' :class='currentIndex == index?"current":""'  v-for = '(item,index) in list'>
                <img :src="item.path" alt="">
            </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,//当前选项卡索引
              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
                  this.currentIndex = index;

              }

          }
      })
    </script>
</body>

</html>

 

posted @ 2020-06-24 02:15  qiuqiu95  阅读(144)  评论(0)    收藏  举报