diff --git a/chat.py b/chat.py
index 31b5a54720b2cdca92ecbbd490860098f48f46b7..145c120df53aed39698f542f84c65460c6764119 100644
--- a/chat.py
+++ b/chat.py
@@ -44,16 +44,16 @@ async def echo(websocket):
         #根据api-token查找房间号
         room_id = name[websocket]['room_id']
         #历史记录数量
-        if "historynum" in event["type"]:
+        if "history_num" in event["type"]:
             r = {
-                "type": "historynum",
-                "content": "{}",
+                "type": "history_num",
+                "content": "{}"
             }
             if room_id in history : 
                 h = len(history[room_id])
             else :
                 h = 0
-            r['content'] = r['content'].format(h)
+            r["content"] = r["content"].format(h)
             message = json.dumps(r,ensure_ascii=False)
             await websocket.send(message)
         #历史记录
diff --git a/websockets/chat.py b/websockets/chat.py
index d558d3a901e983b68df261460f11b480ac110207..49933362ba68b283022bb5eb470d91eaa2879775 100644
--- a/websockets/chat.py
+++ b/websockets/chat.py
@@ -42,12 +42,27 @@ async def echo(websocket):
         event = json.loads(message)
         #根据api-token查找房间号
         room_id = name[websocket]['room_id']
+        #历史记录数量
+        if "history_num" in event["type"]:
+            r = {
+                "type": "history_num",
+                "content": "{}"
+            }
+            if room_id in history : 
+                h = len(history[room_id])
+            else :
+                h = 0
+            r["content"] = r["content"].format(h)
+            message = json.dumps(r,ensure_ascii=False)
+            await websocket.send(message)
         #历史记录
         if "history" in event["type"]:
             start = int(event['page'])
             end = int(event['page_num'])
+            num = int(event['num'])
             if room_id in history : 
-                h = history[room_id][start*end - end:start*end]
+                n = history[room_id][:num]
+                h = n[start*end - end:start*end]
             else :
                 h = []
             r = {'type':'history','content':h}