vuejs3+elementPlus后台管理系统，左侧菜单栏制作、跳转、默认激活菜单

制作：

<script setup>
import {useUserStore} from "@/stores/userStore.js";
import {ref} from "vue";const userStore = useUserStore()
//默认激活菜单
const defaultMenu = ref('/home')
</script><template><el-menuactive-text-color="#409EFF"background-color="#32363f":default-active="defaultMenu"text-color="#fff"@open="handleOpen"@close="handleClose"router><el-sub-menu :index="ind+1" v-for="(menuItem,ind) in userStore.userInfo.menus" :id="menuItem.id"><template #title><el-icon><component :is="menuItem.icon"></component></el-icon><span>{{menuItem.name}}</span></template><el-menu-item :index="childItem.frontpath" v-for="(childItem,childInd ) in menuItem.child"><template #title><el-icon><component :is="childItem.icon"></component></el-icon><span>{{childItem.name}}</span></template></el-menu-item></el-sub-menu></el-menu>
</template><style scoped></style>

实现路径跳转：

默认激活菜单