vue开发TIPS：vue实现选项卡

作者：Terry2022.03.02来源：Web前端之家浏览：4250评论:0

关键词：vuejs

vue开发TIPS：vue实现选项卡。

实现静态UI效果

用传统的方式实现标签结构和样式

基于数据重构UI效果

将静态的结构和样式重构为基于Vue模板语法的形式
处理事件绑定和js控制逻辑

声明式编程

模板的结构和最终显示的效果基本一致

我们先把每组数据作为对象存储在数组中

list: [{
      id: 1,
      title: 'apple',
      path: 'images/苹果.jpg'
      }, {
         id: 2,
         title: 'orange',
         path: 'images/橘子.jpg'
      }, {
         id: 3,
         title: 'lemon',
         path: 'images/柠檬.jpg'
      }]

然后通过v-for对这个数组进行遍历，取到对应的title值。

<li :key='item.id' v-for='(item,index) in list'>{{item.title}}</li>

对图片也进行遍历

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

具体代码如下：

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .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;
            border-bottom: 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-style: 30px;
            line-height: 300px;
            border: 1px solid blue;
            border-top: 0px;
        }
        
        .tab div.current {
            margin-top: 0px;
            width: 300px;
            height: 300px;
            display: block;
        }
        
        img {
            width: 300px;
            height: 300px;
        }
    </style>
</head>

<body>
    <div id="app">
        <div>
            <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 :class='currentIndex==index?"current":""' :key='item.id' v-for='(item,index) in list'>
                <img :src="item.path">
            </div>
            <div>
                <img src="images/柠檬.jpg">
            </div>
        </div>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
    <script type="text/javascript">
        var vm = new Vue({
            el: '#app',
            /*数据*/
            data: {
                currentIndex: 0,
                /*当前索引*/
                list: [{
                    id: 1,
                    title: 'apple',
                    path: 'images/苹果.jpg'
                }, {
                    id: 2,
                    title: 'orange',
                    path: 'images/橘子.jpg'
                }, {
                    id: 3,
                    title: 'lemon',
                    path: 'images/柠檬.jpg'
                }]
            },

            /*js控制逻辑*/
            methods: {
                // 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
                change: function(index) {
                    this.currentIndex = index
                }
            }
        })
    </script>
</body>

</html>

试试吧！

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