6/22完善引入，

src/layout/components/Navbar.vue

@@ -29,7 +29,7 @@
       <div class="avatar-container">
         <el-dropdown class="right-menu-item hover-effect" trigger="click" @command="handleCommand">
           <div class="avatar-wrapper">
-            <img :src="userStore.avatar" class="user-avatar" />
+            <img alt="头像" :src="userStore.avatar" class="user-avatar" />
             <el-icon><caret-bottom /></el-icon>
           </div>
           <template #dropdown>
@@ -60,6 +60,7 @@ import { useNoticeStore } from '@/store/modules/notice';
 import notice from './notice/index.vue';
 import router from '@/router';
 import { ElMessageBoxOptions } from 'element-plus/es/components/message-box/src/message-box.type';
+import { CaretBottom } from '@element-plus/icons-vue';
 
 const props = defineProps({
   Showhamburger: {