diff --git a/ChuanhuChatbot.py b/ChuanhuChatbot.py
index 4074dc1c..42f0f297 100644
--- a/ChuanhuChatbot.py
+++ b/ChuanhuChatbot.py
@@ -359,7 +359,7 @@
             token_count,
             top_p,
             temperature,
-            use_streaming_checkbox,
+            gr.State(0),
             model_select_dropdown,
         ],
         [chatbot, history, status_display, token_count],
diff --git a/chat_func.py b/chat_func.py
index dd9a7954..374178f3 100644
--- a/chat_func.py
+++ b/chat_func.py
@@ -371,9 +371,8 @@ def predict(
             all_token_counts,
             top_p,
             temperature,
-            stream=False,
+            max_token//2,
             selected_model=selected_model,
-            hidden=True,
         )
         for chatbot, history, status_text, all_token_counts in iter:
             status_text = f"Token 达到上限，已自动降低Token计数至 {status_text}"
@@ -410,9 +409,10 @@ def retry(
         stream=stream,
         selected_model=selected_model,
     )
-    logging.info("重试完毕")
+    logging.info("重试中……")
     for x in iter:
         yield x
+    logging.info("重试完毕")
 
 
 def reduce_token_size(
@@ -423,9 +423,8 @@ def reduce_token_size(
     token_count,
     top_p,
     temperature,
-    stream=False,
+    max_token_count,
     selected_model=MODELS[0],
-    hidden=False,
 ):
     logging.info("开始减少token数量……")
     iter = predict(
@@ -437,17 +436,21 @@ def reduce_token_size(
         token_count,
         top_p,
         temperature,
-        stream=stream,
         selected_model=selected_model,
         should_check_token_count=False,
     )
     logging.info(f"chatbot: {chatbot}")
+    flag = False
     for chatbot, history, status_text, previous_token_count in iter:
-        history = history[-2:]
-        token_count = previous_token_count[-1:]
-        if hidden:
-            chatbot.pop()
-        yield chatbot, history, construct_token_message(
-            sum(token_count), stream=stream
+        num_chat = find_n(previous_token_count, max_token_count)
+        if flag:
+            chatbot = chatbot[:-1]
+        flag = True
+        history = history[-2*num_chat:] if num_chat > 0 else []
+        token_count = previous_token_count[-num_chat:] if num_chat > 0 else []
+        msg = f"保留了最近{num_chat}轮对话"
+        yield chatbot, history, msg + "，" + construct_token_message(
+            sum(token_count) if len(token_count) > 0 else 0,
         ), token_count
+    logging.info(msg)
     logging.info("减少token数量完毕")
\ No newline at end of file
diff --git a/utils.py b/utils.py
index 637b2e12..d485a5ad 100644
--- a/utils.py
+++ b/utils.py
@@ -37,9 +37,10 @@ def count_token(message):
     length = len(encoding.encode(input_str))
     return length
 
+
 def markdown_to_html_with_syntax_highlight(md_str):
     def replacer(match):
-        lang = match.group(1) or 'text'
+        lang = match.group(1) or "text"
         code = match.group(2)
 
         try:
@@ -50,60 +51,65 @@ def replacer(match):
         formatter = HtmlFormatter()
         highlighted_code = highlight(code, lexer, formatter)
 
-        return f"<pre><code class=\"{lang}\">{highlighted_code}</code></pre>"
+        return f'<pre><code class="{lang}">{highlighted_code}</code></pre>'
 
-    code_block_pattern = r'```(\w+)?\n([\s\S]+?)\n```'
+    code_block_pattern = r"```(\w+)?\n([\s\S]+?)\n```"
     md_str = re.sub(code_block_pattern, replacer, md_str, flags=re.MULTILINE)
 
     html_str = markdown(md_str)
     return html_str
 
+
 def normalize_markdown(md_text: str) -> str:
-    lines = md_text.split('\n')
+    lines = md_text.split("\n")
     normalized_lines = []
     inside_list = False
 
     for i, line in enumerate(lines):
-        if re.match(r'^(\d+\.|-|\*|\+)\s', line.strip()):
-            if not inside_list and i > 0 and lines[i - 1].strip() != '':
-                normalized_lines.append('')
+        if re.match(r"^(\d+\.|-|\*|\+)\s", line.strip()):
+            if not inside_list and i > 0 and lines[i - 1].strip() != "":
+                normalized_lines.append("")
             inside_list = True
             normalized_lines.append(line)
-        elif inside_list and line.strip() == '':
-            if i < len(lines) - 1 and not re.match(r'^(\d+\.|-|\*|\+)\s', lines[i + 1].strip()):
+        elif inside_list and line.strip() == "":
+            if i < len(lines) - 1 and not re.match(
+                r"^(\d+\.|-|\*|\+)\s", lines[i + 1].strip()
+            ):
                 normalized_lines.append(line)
             continue
         else:
             inside_list = False
             normalized_lines.append(line)
 
-    return '\n'.join(normalized_lines)
+    return "\n".join(normalized_lines)
+
 
 def convert_mdtext(md_text):
-    code_block_pattern = re.compile(r'```(.*?)(?:```|$)', re.DOTALL)
+    code_block_pattern = re.compile(r"```(.*?)(?:```|$)", re.DOTALL)
     code_blocks = code_block_pattern.findall(md_text)
     non_code_parts = code_block_pattern.split(md_text)[::2]
 
     result = []
-    for non_code, code in zip(non_code_parts, code_blocks + ['']):
+    for non_code, code in zip(non_code_parts, code_blocks + [""]):
         if non_code.strip():
             non_code = normalize_markdown(non_code)
-            result.append(mdtex2html.convert(non_code, extensions=['tables']))
+            result.append(mdtex2html.convert(non_code, extensions=["tables"]))
         if code.strip():
-            _, code = detect_language(code) # 暂时去除代码高亮功能，因为在大段代码的情况下会出现问题
+            _, code = detect_language(code)  # 暂时去除代码高亮功能，因为在大段代码的情况下会出现问题
             code = f"```{code}\n\n```"
             code = markdown_to_html_with_syntax_highlight(code)
             result.append(code)
     result = "".join(result)
     return result
 
+
 def detect_language(code):
     if code.startswith("\n"):
         first_line = ""
     else:
-        first_line = code.strip().split('\n', 1)[0]
-    language = first_line.lower() if first_line else ''
-    code_without_language = code[len(first_line):].lstrip() if first_line else code
+        first_line = code.strip().split("\n", 1)[0]
+    language = first_line.lower() if first_line else ""
+    code_without_language = code[len(first_line) :].lstrip() if first_line else code
     return language, code_without_language
 
 
@@ -336,26 +342,40 @@ def replace_today(prompt):
     today = datetime.datetime.today().strftime("%Y-%m-%d")
     return prompt.replace("{current_date}", today)
 
+
 def get_geoip():
-    response = requests.get('https://ipapi.co/json/', timeout=5)
+    response = requests.get("https://ipapi.co/json/", timeout=5)
     try:
         data = response.json()
     except:
-        data = {
-            "error": True,
-            "reason" : "连接ipapi失败"
-        }
+        data = {"error": True, "reason": "连接ipapi失败"}
     if "error" in data.keys():
         logging.warning(f"无法获取IP地址信息。\n{data}")
-        if data['reason'] == "RateLimited":
-            return f"获取IP地理位置失败，因为达到了检测IP的速率限制。聊天功能可能仍然可用，但请注意，如果您的IP地址在不受支持的地区，您可能会遇到问题。"
+        if data["reason"] == "RateLimited":
+            return (
+                f"获取IP地理位置失败，因为达到了检测IP的速率限制。聊天功能可能仍然可用，但请注意，如果您的IP地址在不受支持的地区，您可能会遇到问题。"
+            )
         else:
             return f"获取IP地理位置失败。原因：{data['reason']}。你仍然可以使用聊天功能。"
     else:
-        country = data['country_name']
+        country = data["country_name"]
         if country == "China":
             text = "**您的IP区域：中国。请立即检查代理设置，在不受支持的地区使用API可能导致账号被封禁。**"
         else:
             text = f"您的IP区域：{country}。"
         logging.info(text)
-        return text
\ No newline at end of file
+        return text
+
+
+def find_n(lst, max_num):
+    n = len(lst)
+    total = sum(lst)
+
+    if total < max_num:
+        return n
+
+    for i in range(len(lst)):
+        if total - lst[i] < max_num:
+            return n - i -1
+        total = total - lst[i]
+    return 1