fix: 修复排行榜卡片和家庭排名页面的总家庭数显示问题

移除随机生成的家庭数，改为使用接口返回的真实数据
将数字滚动组件的位数固定为5位
在家庭参与排名文本前添加"+"符号

 <!--
  * @Date: 2025-01-09 00:00:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-10-25 20:13:01
+ * @LastEditTime: 2025-10-27 09:49:49
  * @FilePath: /lls_program/src/components/RankingCard.vue
  * @Description: 排行榜卡片组件
 -->
@@ -52,11 +52,11 @@
           <NumberRoll
             ref="numberRollRef"
             :target-value="currentTotalFamilySum"
-            :digit-count="currentTotalFamilySum.length"
+            :digit-count="5"
             :duration="1500"
             :digit-delay="150"
           />
-          <text class="ml-2" style="font-size: 28rpx;">组家庭参与排名</text>
+          <text class="ml-2" style="font-size: 28rpx;"><text class="mr-1 text-base">+</text>组家庭参与排名</text>
         </view>
       </view>
 
@@ -333,9 +333,8 @@ const loadLeaderboardData = async (isInitialLoad = false) => {
       }
       // 设置当前日期
       currentDate.value = response.data.yesterday
-      // TODO: 设置总家庭数
-      // 生成随机的4位数
-      currentTotalFamilySum.value = Math.floor(1000 + Math.random() * 9000);
+      // 设置总家庭数
+      currentTotalFamilySum.value = response.data.family_count || 0;
     }
   } catch (error) {
     console.error('获取排行榜数据失败:', error)

 <!--
  * @Date: 2025-09-01 13:07:52
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-10-25 19:36:34
+ * @LastEditTime: 2025-10-27 09:51:02
  * @FilePath: /lls_program/src/pages/FamilyRank/index.vue
  * @Description: 文件描述
 -->
@@ -51,11 +51,11 @@
           <NumberRoll
             ref="numberRollRef"
             :target-value="currentTotalFamilySum"
-            :digit-count="currentTotalFamilySum.length"
+            :digit-count="5"
             :duration="1500"
             :digit-delay="150"
           />
-          <text class="ml-2" style="font-size: 28rpx;">组家庭参与排名</text>
+          <text class="ml-2" style="font-size: 28rpx;"><text class="mr-1 text-base">+</text>组家庭参与排名</text>
         </view>
       </view>
 
@@ -370,9 +370,8 @@ const loadLeaderboardData = async (isInitialLoad = false) => {
         leaderboardData.value = response.data
       }
       currentDate.value = response.data.yesterday
-      // TODO: 设置总家庭数
-      // 生成随机的4位数
-      currentTotalFamilySum.value = Math.floor(1000 + Math.random() * 9000);
+      // 设置总家庭数
+      currentTotalFamilySum.value = response.data.family_count || 0;
     }
   } catch (error) {
     console.error('获取排行榜数据失败:', error)