新增商品拼团模块

components/my-components/my-header-card.vue

@@ -15,7 +15,8 @@
 				</view>
 			</view>
 			<view class="right" v-if="showSwitch">
-				<u-switch :active-value="1" :inactive-value="0" v-model="isOpen" @change="defineEmits(['update:isOpen'])"></u-switch>
+				<!-- 关键修复：删掉错误的 @change 绑定，defineModel 已自动处理双向绑定 -->
+				<u-switch :active-value="1" :inactive-value="0" v-model="isOpen"></u-switch>
 			</view>
 		</view>
 	</view>
@@ -27,11 +28,12 @@ import { ref, onMounted, nextTick } from 'vue';
 const props = defineProps({
 	options: {
 		type: Object,
-		default: {
+		default: () => ({
+			// 注意：对象/数组默认值推荐用函数，避免引用共享
 			name: '标题',
 			intro: '说明',
 			icon: 'xszk'
-		}
+		})
 	},
 	showSwitch: {
 		type: Boolean,
@@ -41,11 +43,13 @@ const props = defineProps({
 
 const headHeight = ref(70);
 
+// defineModel 是 Vue3.4+ 语法糖，自动实现 v-model:isOpen 的双向绑定
 const isOpen = defineModel('isOpen', {
 	type: [Boolean, String, Number],
 	default: 0
 });
 
+// 声明自定义 emit 事件（仅在 script setup 内使用）
 const emits = defineEmits(['load']);
 
 onMounted(() => {