目录

一           、方法1：使用Vant组件库的tab组件

二
  
 
  
 
  
 
  
 
  
 
、 方法2：手动创建tab切换效果

2.在components文件夹下创建切换的.vue页面









、引入使用

3.布局：上面放tab点击的标签
  
  
  
  
  ，下面放组件呈现对应内容

4.写好上面的tab点击标签  
  
  
  
  
 ，定义数据修改样式

二 
  
  
  
  
  、完整代码

一
  
  
  
  
  
、方法1：使用Vant组件库的tab组件

Vant 2 - Mobile UI Components built on Vue

二
 


 


 


 


 

、 方法2：手动创建tab切换效果

2.在components文件夹下创建切换的.vue页面 
 
 
 
 
 、引入使用

import one from "./components/one"; import two from "./components/two"; import three from "./components/three"; import four from "./components/four"; components: { one, two, three, four, },

3.布局：上面放tab点击的标签
 


 


 


 


 


，下面放组件呈现对应内容

// 然后使用v-for循环出来呈现 <template> <div id="app"> <div class="top"> <!-- 放置tab点击标签 --> <div class="crad" :class="{ highLight: whichIndex == index }" v-for="(item, index) in cardArr" :key="index" @click="whichIndex = index"> {{ item.componentName }} </div> </div> <div class="bottom"> <!-- 放置动态组件... --> <!-- keep-alive缓存组件
 
 
 
 
 ，这样的话   
   
   
   
   
 ，组件就不会被销毁
 

 

 

 

 

，DOM就不会被重新渲染

 

 

 

 

 ， 浏览器也就不会回流和重绘           ，就可以优化性能           。不使用的话页面加载就会慢一点 --> <keep-alive> <component :is="componentId"></component> </keep-alive> </div> </div> </template>

4.写好上面的tab点击标签
 
 

 
 

 
 

 
 

 
 

，定义数据修改样式

// 首先我们在data中定义数组cardArr存放点击tab的数据 data() { return { whichIndex: 0, cardArr: [ { componentName: "动态组件一", componentId: "one", },{ componentName: "动态组件二", componentId: "two", },{ componentName: "动态组件三", componentId: "three", },{ componentName: "动态组件四", componentId: "four", }, ], }; }, // 又因为需要有高亮状态样式：默认索引0高亮 .highLight { box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2); transform: translate3d(0, -1px, 0); }

二
   
   
   
   
   
、完整代码

<template> <div id="app"> <div class="top"> <div class="crad" :class="{ highLight: whichIndex == index }" v-for="(item, index) in cardArr" :key="index" @click=" whichIndex = index; componentId = item.componentId; " > {{ item.componentName }} </div> </div> <div class="bottom"> <keep-alive> <component :is="componentId"></component> </keep-alive> </div> </div> </template> <script> import one from "./components/one"; import two from "./components/two"; import three from "./components/three"; import four from "./components/four"; export default { components: { one, two, three, four, }, data() { return { whichIndex: 0, componentId: "one", cardArr: [ { componentName: "动态组件一", componentId: "one", }, { componentName: "动态组件二", componentId: "two", }, { componentName: "动态组件三", componentId: "three", }, { componentName: "动态组件四", componentId: "four", }, ], }; }, }; </script> <style lang="less" scoped> #app { width: 100%; height: 100vh; box-sizing: border-box; padding: 50px; .top { width: 100%; height: 80px; display: flex; justify-content: space-around; .crad { width: 20%; height: 80px; line-height: 80px; text-align: center; background-color: #fff; border: 1px solid #e9e9e9; } .highLight { box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2); transform: translate3d(0, -1px, 0); } } .bottom { margin-top: 20px; width: 100%; height: calc(100% - 100px); border: 3px solid pink; display: flex; justify-content: center; align-items: center; } } </style>