diff --git a/cli_demo.py b/cli_demo.py
index 4aa35d3..d7bb6ea 100644
--- a/cli_demo.py
+++ b/cli_demo.py
@@ -1,8 +1,7 @@
+# coding=gbk
 import os
 import platform
-import signal
 from transformers import AutoTokenizer, AutoModel
-import readline
 
 tokenizer = AutoTokenizer.from_pretrained("THUDM/chatglm2-6b", trust_remote_code=True)
 model = AutoModel.from_pretrained("THUDM/chatglm2-6b", trust_remote_code=True).cuda()
@@ -15,20 +14,6 @@
 clear_command = 'cls' if os_name == 'Windows' else 'clear'
 stop_stream = False
 
-
-def build_prompt(history):
-    prompt = "欢迎使用 ChatGLM2-6B 模型，输入内容即可进行对话，clear 清空对话历史，stop 终止程序"
-    for query, response in history:
-        prompt += f"\n\n用户：{query}"
-        prompt += f"\n\nChatGLM2-6B：{response}"
-    return prompt
-
-
-def signal_handler(signal, frame):
-    global stop_stream
-    stop_stream = True
-
-
 def main():
     past_key_values, history = None, []
     global stop_stream