修复我的小区每次点击相同的公告tab就会添加一条数据的bug

packages/community/index/index.vue

@@ -501,7 +501,6 @@ export default {
     },
 
     async selectTab(index, item) {
-      console.log("🚀 ~ selectTab ~ item:", item)
       const isTabChange = this.selectedTab !== index;
       if (isTabChange) {
         this.page_num = 1;
@@ -509,6 +508,12 @@ export default {
         // this.loadMoreText = "下拉加载后续10条，共计30条";
       }
       this.selectedTab = index;
+      
+      // 如果不是切换tab，且已经没有更多数据，且已有数据，则不发送请求
+      if (!isTabChange && !this.flag && this.infoList.length > 0) {
+        return;
+      }
+      
       const res = await request(apiArr.infoPage, "POST", {
         community_id: Number(uni.getStorageSync("changeCommData").id),
         announcement_category_id: item.id,
@@ -529,10 +534,14 @@ export default {
       // 限制最多3页
       this.flag = hasMore;
 
+      // 检查数据是否重复
+      const isDataDuplicate = !isTabChange && this.infoList.length > 0 && newData.length > 0 && 
+        this.infoList[this.infoList.length - 1].id === newData[0].id;
+
       // 更新数据
       if (isTabChange) {
         this.infoList = newData;
-      } else {
+      } else if (!isDataDuplicate) {
         this.infoList = this.infoList.concat(newData);
       }