前端-vue基础27-tab选项卡之切换效果 

<!DOCTYPE html>
<html lang="en">
 
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .tab {
            width: 500px;
            height: 500px;
        }
        
        img {
            width: 100px;
            height: 50px;
            display: none;
        }
        
        .tab img {
            /*  display: none; */
        }
        
        .tab div {
            /*  display: none; */
        }
        
        .tab .current img {
            display: block;
        }
        
        .active {
            background-color: orange;
        }
    </style>
</head>
 
<body>
    <div id="app">
        <div class="tab">
            <!--  <ul>
                <li class="active">apple</li>
                <li>orange</li>
                <li>lemon</li>
            </ul> -->
            <ul>
                <li v-on:click='change(index)' :class='currentIndex==index?"active":""' :key='item.id' v-for='(item,index) in list'>{{item.title}}</li>
            </ul>
            <div>
                <div :class='currentIndex==index?"current":""' :key=' item.id ' v-for='(item,index) in list '>
                    <img :src="item.path">
                </div>
                <!-- 
             <div class="current">
                    <img src="./img/1.png" alt="">
                </div>
                <div>
                    <img src="./img/2.png" alt="">
                </div>
                <div>
                    <img src="./img/3.png" alt="">
                </div> 
            -->
            </div>
            </ul>
        </div>
    </div>
    <script type="text/javascript" src="./js/vue.js"></script>
    <script>
        var vm = new Vue({
            //绑定的标签
            el: '#app ',
            //自定义按键修饰符
            data: {
                currentIndex: 0, //选项卡的索引
 
                list: [{
                    id: 1,
                    title: 'apple ',
                    path: './img/1.png '
                }, {
                    id: 2,
                    title: 'orange ',
                    path: './img/2.png '
                }, {
                    id: 3,
                    title: 'lemon ',
                    path: './img/3.png '
                }]
            },
            methods: {
                change: function(index) {
                    //切换效果
                    this.currentIndex = index;
                }
            }
        });
    </script>
</body>
 
</html>

运行结果

 

posted @ 2022-07-23 22:30  前端导师歌谣  阅读(146)  评论(0)    收藏  举报