Vue tab switch切换效果

vue2 中的实现

  <template>
    <div>
      <div class="switch-box" :style="{ '--translatex': translatex }">
        <div
          v-for="(item, index) in type"
          :key="index"
          @click="switchType(index)"
        >
          {{ item.name }}
        </div>
      </div>
    </div>
  </template>

  <script>
  export default {
    data() {
      return {
        translatex: "0px",
        type: [{ name: "tab1" }, { name: "tab2" }],
      };
    },
    methods: {
      switchType(index) {
        if (index === 0) {
          this.translatex = `0px`;
        } else if (index === 1) {
          this.translatex = `100px`;
        }
      },
    },
  };
  </script>

  <style lang="less" scoped>
  .switch-box {
    width: 200px;
    height: 40px;
    border-radius: 20px;
    display: flex;
    background-color: white;
    > div {
      width: 100px;
      height: 40px;
      line-height: 40px;
      border-radius: 20px;
      text-align: center;
      cursor: pointer;
      z-index: 1;
    }
    position: relative;
  }

  .switch-box::after {
    content: "";
    position: absolute;
    background-color: skyblue;
    border-radius: 20px;
    width: 100px;
    height: 100%;
    transform: translateX(var(--translatex));
    transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
    z-index: 0;
  }
</style>

vue3 组件式（composition）中的实现

<script setup>
import Home from './Home.vue'
import Posts from './Posts.vue'
import Archive from './Archive.vue'
import { ref } from 'vue'
 
const currentTab = ref('Home')

const tabs = {
  Home,
  Posts,
  Archive
}
</script>

<template>
  <div class="demo">
    <button
       v-for="(_, tab) in tabs"
       :key="tab"
       :class="['tab-button', { active: currentTab === tab }]"
       @click="currentTab = tab"
     >
      {{ tab }}
    </button>
	  <component :is="tabs[currentTab]" class="tab"></component>
  </div>
</template>

<style>
.demo {
  font-family: sans-serif;
  border: 1px solid #eee;
  border-radius: 2px;
  padding: 20px 30px;
  margin-top: 1em;
  margin-bottom: 40px;
  user-select: none;
  overflow-x: auto;
}

.tab-button {
  padding: 6px 10px;
  border-top-left-radius: 3px;
  border-top-right-radius: 3px;
  border: 1px solid #ccc;
  cursor: pointer;
  background: #f0f0f0;
  margin-bottom: -1px;
  margin-right: -1px;
}
.tab-button:hover {
  background: #e0e0e0;
}
.tab-button.active {
  background: #e0e0e0;
}
.tab {
  border: 1px solid #ccc;
  padding: 10px;
}
</style>

https://cn.vuejs.org/guide/essentials/component-basics.html#dynamic-components:~:text=中查看示例-,上面的例子是通过 Vue 的,-<component> 元素