让多个组件使用同一个挂载点，并动态切换，这就是动态组件。
在挂载点使用component标签 <component :is="comId"></component>
引入组件
import AVue from './components/abComponrnts/A.vue'import BVue from './components/abComponrnts/B.vue'
组件实例信息
如果你把组件实例放到Reactive Vue会给你一个警告：Component which was made a reactive object. This can lead to unnecessary performance overhead, and should be avoided by marking the component with `markRaw` or using `shallowRef` instead of `ref`.
Vue 收到一个组件，它被做成一个反应性对象。这可能会导致不必要的性能开销，应通过使用“markRaw”标记组件或使用“shallowRef”而不是“ref”来避免。
const comId = shallowRef(AVue)const dataCom = reactive([{name:'A组件',com:markRaw(AVue)},{name:'B组件',com:markRaw(BVue)}])
遍历dataCom
设置动态样式active
设置点击切换事件
<div class="tabs"><div @click="switchCom(item,index)":class="[bColor == index? 'active' : '']" class="tabs-card" v-for="(item,index) in dataCom"><div> {{ item.name }}</div></div></div><component :is="comId"></component>
完整ts代码
<script setup lang='ts'>import {ref,reactive,markRaw,shallowRef} from 'vue'import AVue from './components/abComponrnts/A.vue'import BVue from './components/abComponrnts/B.vue'// 动态组件，导航切换const comId = shallowRef(AVue)const bColor = ref(0)const dataCom = reactive([{name:'A组件',com:markRaw(AVue)},{name:'B组件',com:markRaw(BVue)}])const switchCom = (item:any,index:number)=>{comId.value = bColor.value = index}</script><style scoped lang="less">.active{background-color: aqua;}.tabs{display: flex;&-card{border: 1px solid #ccc;padding: 5px 10px;margin: 10px;cursor: pointer;}}</style>
效果
