测试修改

src/views/HomeView.vue

@@ -17,7 +17,7 @@
 </template>
 
 <script>
-import { defineComponent, ref, getCurrentInstance } from 'vue'
+import { defineComponent, ref, getCurrentInstance, onMounted } from 'vue'
 import RFID from './RFID.vue'
 import InTask from './InTask.vue'
 import OutTask from './OutTask.vue'
@@ -40,15 +40,19 @@ export default defineComponent({
       {title: '查询', icon: 'iconfont icon-chaxun', template: 'Query'},
       {title: '通道配置', icon: 'iconfont icon-shezhi', template: 'ChannelSetting'},
     ]
+
+    
     
 
     if (sessionStorage.getItem('bgColor')) {
       color.value = sessionStorage.getItem('bgColor')
+    } else {
+      sessionStorage.setItem('bgColor', '#1f8a36')
     }
 
-    setTimeout(()=> {
+    onMounted(() => {
       changeBg()
-    }, 200)
+    });
 
     function changeBg() {
       for(var i =0;i< document.getElementsByClassName('el-card__header').length; i++){