diff --git a/message_storage/message_to_db.py b/message_storage/message_to_db.py
index 249fee9..efd7150 100644
--- a/message_storage/message_to_db.py
+++ b/message_storage/message_to_db.py
@@ -49,16 +49,15 @@ def get_messages(group_id, all_contacts: dict):
         # 生成Redis key
         key = f"{group_id}:summary_time"
         last_summary_time = r.get(key)
+        current_time = datetime.now()
+        current_date = current_time.strftime('%Y-%m-%d %H:%M:%S')
         if last_summary_time is None:
             # 获取当前时间并计算8小时前的时间
-            current_time = datetime.now()
             eight_hours_ago = current_time - timedelta(hours=8)
 
             # 转换为数据库中存储的时间格式 (假设timestamp是DATETIME类型)
             last_summary_time = eight_hours_ago.strftime('%Y-%m-%d %H:%M:%S')
-            current_date = current_time.strftime('%Y-%m-%d %H:%M:%S')
-            r.set(key, current_date)
-
+        r.set(key, current_date)
         with connection.cursor() as cursor:
 
             # 执行查询，获取最近8小时的消息
diff --git a/message_summary/message_summary_4o.py b/message_summary/message_summary_4o.py
index 98a6fe0..743114f 100644
--- a/message_summary/message_summary_4o.py
+++ b/message_summary/message_summary_4o.py
@@ -19,7 +19,7 @@ def message_summary(content):
     authorization = "46a5674a-e978-491b-a810-5d54605f2c36"  # 请替换为真实的Authorization token
     url = 'http://127.0.0.1:8080/v1/chat/completions'
 
-    prompt = ('你是一个聊天记录总结助手，请使用如下格式进行聊天记录整理：'
+    prompt = ('你是一个聊天记录总结助手，请使用如下格式进行聊天记录整理（如果存在多个主题则每个主题分开显示相关的参与者时间点，内容摘要）：'
               '[聊天主题] ☆☆☆'
               '参与者：[列出参与者名字]'
               '时间点：[开始时间] - [结束时间]'