el-dropdown子项el-dropdown-menu缺失引起项目元素混乱

src/layout/components/header.vue

@@ -6,25 +6,25 @@
         class="hamburger-container"
         @toggleClick="toggleSideBar"
       />
-      <el-dropdown
-        class="change-sys"
-        @command="handleCommand"
-      >
+<!--      <el-dropdown-->
+<!--        class="change-sys"-->
+<!--        @command="handleCommand"-->
+<!--      >-->
 <!--        <span class="el-dropdown-link">-->
 <!--          业务中台<i class="el-icon-arrow-down el-icon&#45;&#45;right" />-->
 <!--        </span>-->
-        <el-dropdown-menu
-          slot="dropdown"
-        >
-          <el-dropdown-item
-            v-for="(item) in appList"
-            :key="item.businessId"
-            :command="specialTag !== '1' ? item.pcUrl : ''"
-          >
-            {{ item.system }}
-          </el-dropdown-item>
-        </el-dropdown-menu>
-      </el-dropdown>
+<!--        <el-dropdown-menu-->
+<!--          slot="dropdown"-->
+<!--        >-->
+<!--          <el-dropdown-item-->
+<!--            v-for="(item) in appList"-->
+<!--            :key="item.businessId"-->
+<!--            :command="specialTag !== '1' ? item.pcUrl : ''"-->
+<!--          >-->
+<!--            {{ item.system }}-->
+<!--          </el-dropdown-item>-->
+<!--        </el-dropdown-menu>-->
+<!--      </el-dropdown>-->
     </div>
     <div class="right-menu">
       <!--      <i class="el-icon-info" />-->