diff --git a/plugins/dify/main.py b/plugins/dify/main.py
index b112e02..4f32444 100644
--- a/plugins/dify/main.py
+++ b/plugins/dify/main.py
@@ -3,6 +3,7 @@ import os
 import requests
 import json
 import time
+import re  # 添加re模块导入
 from typing import Dict, Any, List, Optional, Tuple
 
 from wcferry import Wcf
@@ -102,7 +103,16 @@ class DifyPlugin(MessagePluginInterface):
         content = str(message.get("content", "")).strip()
         command = content.split(" ")[0]
 
-        return command in self._commands
+        # 检查是否是命令触发
+        if command in self._commands:
+            return True
+            
+        # 检查是否是被@的消息
+        if message.get("is_at", False) and message.get("roomid", ""):
+            # 只处理群聊中被@的消息
+            return True
+        
+        return False
 
     @plugin_stats_decorator(plugin_name="Dify聊天")
     @plugin_points_cost(2, "AI聊天消耗积分", Feature.AI_CAPABILITY)
@@ -110,23 +120,65 @@ class DifyPlugin(MessagePluginInterface):
         """处理消息"""
         content = str(message.get("content", "")).strip()
         self.LOG.info(f"插件执行： {self.name}：{content}")
-        parts = content.split(" ", 1)
-        command = parts[0]
         sender = message.get("sender")
         roomid = message.get("roomid", "")
         wcf: Wcf = message.get("wcf")
         gbm: GroupBotManager = message.get("gbm")
-
+        
+        # 处理被@的消息
+        if message.get("is_at", False) and roomid:
+            # 检查权限
+            if gbm.get_group_permission(roomid, Feature.AI_CAPABILITY) == PermissionStatus.DISABLED:
+                return False, "没有权限"
+                
+            # 去除@的人和空格等字符
+            query = re.sub(r"@.*?[\u2005|\s]", "", content).strip()
+            
+            if not query:
+                wcf.send_text("请在@我的同时提供问题内容", roomid, sender)
+                return True, "没有提供问题内容"
+                
+            self.message_util.send_text_msg("⏳AI 正在加油，请稍候… 😊", roomid, sender)
+            
+            try:
+                # 调用Dify API获取回复
+                response = self._chat_with_dify(roomid, sender, query)
+                # 去除广告内容
+                response = remove_trailing_content(response)
+                
+                # 发送回复
+                if response:
+                    # 判断是否为本地文件路径
+                    if os.path.isfile(response):
+                        # 如果是文件路径，使用发送文件方法
+                        wcf.send_file(response, roomid)
+                    else:
+                        # 如果是普通文本，使用发送文本方法
+                        wcf.send_text(response, roomid, sender)
+                    return True, "发送成功"
+                else:
+                    wcf.send_text("❌未能获取到回复，请稍后再试", roomid, sender)
+                    return True, "未获取到回复"
+                    
+            except Exception as e:
+                self.LOG.error(f"处理Dify聊天请求出错: {e}")
+                wcf.send_text(f"❌请求出错：{str(e)}", roomid, sender)
+                return True, f"处理出错: {e}"
+        
+        # 原有的命令处理逻辑
+        parts = content.split(" ", 1)
+        command = parts[0]
+    
         # 检查命令格式
         if len(parts) < 2 or not parts[1].strip():
             wcf.send_text(f"{self.command_format}",
                           (roomid if roomid else sender), sender)
             return True, "命令格式错误"
-
+    
         # 检查权限
         if roomid and gbm.get_group_permission(roomid, Feature.AI_CAPABILITY) == PermissionStatus.DISABLED:
             return False, "没有权限"
-
+    
         self.message_util.send_text_msg("⏳AI 正在加油，请稍候… 😊", (roomid if roomid else sender),
                                         sender if roomid else "")
         # 获取查询内容
diff --git a/plugins/message_sign/main.py b/plugins/message_sign/main.py
index 74a68b8..ab957a0 100644
--- a/plugins/message_sign/main.py
+++ b/plugins/message_sign/main.py
@@ -240,7 +240,7 @@ class MessageSignPlugin(MessagePluginInterface):
 
                 # 如果 sign_stat 已经大于或等于今天的零点，则认为用户已经签到过了
                 if sign_stat >= today_start:
-                    self.message_util.send_text_msg(f"您今天已经签到过了！共获得积分：{user_record['points']}",
+                    self.message_util.send_text_msg(f"您今天已经签到过了！",
                                                     (roomid if roomid else sender), sender)
                     return False, "已签到"
 
diff --git a/robot.py b/robot.py
index 2b7a6f8..4e42b82 100644
--- a/robot.py
+++ b/robot.py
@@ -154,13 +154,6 @@ class Robot(Job):
             return all(value is not None for key, value in args.items() if key != 'proxy')
         return False
 
-    def toAt(self, msg: WxMsg) -> bool:
-        """处理被 @ 消息
-        :param msg: 微信消息结构
-        :return: 处理状态，`True` 成功，`False` 失败
-        """
-        return self.toChitchat(msg)
-
     def toChitchat(self, msg: WxMsg) -> bool:
         """闲聊，接入 ChatGPT
         """
@@ -210,12 +203,14 @@ class Robot(Job):
         # 发布消息接收事件
         self.event_system.publish(EventType.MESSAGE_RECEIVED, {"message": msg})
 
+        # 标记插件是否处理了消息
+        plugin_processed = False
+        
         # 尝试使用插件处理消息
         if self.process_plugin_message(msg):
-            return
+            plugin_processed = True
 
-        # 如果没有插件处理，使用原有逻辑处理消息
-        # 群聊消息
+        # 群聊消息处理 - 无论插件是否处理过，都执行数据存储
         if msg.from_group():
             # 调用统计逻辑进行聊天数据统计：
             try:
@@ -232,6 +227,10 @@ class Robot(Job):
             except Exception as e:
                 self.LOG.error(f"archive_message error: {e}")
 
+            # 如果插件已处理消息，则不再执行后续的业务逻辑
+            if plugin_processed:
+                return
+
             # 记录在群里发的最新消息，可以通过撤回指令撤回
             try:
                 if msg.from_self():
@@ -243,10 +242,12 @@ class Robot(Job):
             except Exception as e:
                 self.LOG.error(f"revoke_receive_message error: {e}")
 
-            if msg.is_at(self.wxid):  # 被@
-                self.toAt(msg)
             return  # 处理完群聊信息，后面就不需要处理了
 
+        # 如果插件已处理消息，则不再执行后续的业务逻辑
+        if plugin_processed:
+            return
+
         # 非群聊信息，按消息类型进行处理
         if msg.type == 37:  # 好友请求
             self.LOG.info(f"收到好友请求：{msg}")
@@ -421,7 +422,7 @@ class Robot(Job):
                     "sender": msg.sender,
                     "roomid": msg.roomid if msg.from_group() else "",
                     "xml": msg.xml,
-                    "is_at": msg.is_at(self.wxid),
+                    "is_at": msg.is_at(self.wxid),  # 确保正确设置is_at标志
                     "timestamp": time.time(),
                     "wcf": self.wcf,  # 提供wcf对象，让插件可以直接发送消息
                     "message_util": self.message_util,  # 提供消息工具类