diff --git a/callback.py b/callback.py
index 99f394a..0035518 100644
--- a/callback.py
+++ b/callback.py
@@ -182,31 +182,36 @@ async def img(
     max_length=None
     top_p=None
     temperature=None
+    response=None
     try:
         query = unquote(query["query"], "utf-8")
         # 判断有没有'/img'标识符
-        if ('/img' in query):
+        if ('/img' in query) is True:
             query=query.replace('/img', '')
             prompt=query
             txt2img_url = 'http://127.0.0.1:7861/sdapi/v1/txt2img'
             data = {'prompt': prompt}
             res = submit_post(txt2img_url, data)
             # 以时间戳命名
-            now = datetime.datetime.now()
+            now =str(time.time()) 
             save_encoded_image(res.json()['images'][0], f'img/{now}.png')
             response=f'http://aiimg.yidooplanet.com/{now}.png'
+            print('response',response)
+            # return responseimg
         
         else:
             prompt = query #问题
-        # 请求ai模型
-        response, history = model.chat(tokenizer,
-                                   prompt,
-                                   history=history,
-                                   max_length=max_length if max_length else 2048,
-                                   top_p=top_p if top_p else 0.7,
-                                   temperature=temperature if temperature else 0.95)
+            # 请求ai模型
+            response, history = model.chat(tokenizer,
+                                    prompt,
+                                    history=history,
+                                    max_length=max_length if max_length else 2048,
+                                    top_p=top_p if top_p else 0.7,
+                                    temperature=temperature if temperature else 0.95)
 
-    except:
+    except(ValueError, ArithmeticError):
+        print('ValueError',ValueError)
+        print('ArithmeticError',ArithmeticError)
         prompt = ""
    
 
@@ -228,10 +233,12 @@ async def img(
 
 if __name__ == '__main__':
     tokenizer = AutoTokenizer.from_pretrained("THUDM/chatglm2-6b-int4", trust_remote_code=True)
-    model = AutoModel.from_pretrained("THUDM/chatglm2-6b-int4", trust_remote_code=True).cuda()
+    model = AutoModel.from_pretrained("THUDM/chatglm2-6b-int4", trust_remote_code=True).half().quantize(8).cuda()
+
     # 多显卡支持，使用下面三行代替上面两行，将num_gpus改为你实际的显卡数量
     # model_path = "THUDM/chatglm2-6b"
     # tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
     # model = load_model_on_gpus(model_path, num_gpus=2)
-    model.eval()
+
+    # model.eval()
     uvicorn.run(app, host='0.0.0.0', port=8000, workers=1)
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