修复：话题帖子数

src/pages/forumManage/topicList/index.tsx

@@ -42,8 +42,9 @@ const TopicList = () => {
     },
     {
       title: '帖子数',
-      dataIndex: '',
+      dataIndex: 'postCount',
       align: 'center',
+      render: (text: number) => text || 0,
     },
     {
       title: '操作',