diff --git a/rag2_0/dify/test_dify_chatapi.py b/rag2_0/dify/test_dify_chatapi.py
index 8e67c2a..fa5cb64 100644
--- a/rag2_0/dify/test_dify_chatapi.py
+++ b/rag2_0/dify/test_dify_chatapi.py
@@ -57,20 +57,21 @@ class DifyComparisonTester:
         with ThreadPoolExecutor(max_workers=2) as executor:
             future_old = executor.submit(get_old_answer)
             future_new = executor.submit(get_new_answer)
-            
-            old_result = future_old.result()
-            new_result = future_new.result()
-            old_message_id = old_result["message_id"]
-            new_message_id = new_result["message_id"]
-            old_message_info = DifyTool.get_message_debug_info_id(message_id=old_message_id)
-            new_message_info = DifyTool.get_message_debug_info_id(message_id=new_message_id)
-            for workflow_node in new_message_info["workflow_node_executions_info"]:
-                if workflow_node["title"] == "问题优化结果解析":
-                    outputs = json.loads(workflow_node["outputs"])  
-                    rewrite_query = outputs["optimize_query"]
-            old_answer = old_result["answer"]
-            new_answer = new_result["answer"]
-            
+            try:
+                old_result = future_old.result()
+                new_result = future_new.result()
+                old_message_id = old_result["message_id"]
+                new_message_id = new_result["message_id"]
+                old_message_info = DifyTool.get_message_debug_info_id(message_id=old_message_id)
+                new_message_info = DifyTool.get_message_debug_info_id(message_id=new_message_id)
+                for workflow_node in new_message_info["workflow_node_executions_info"]:
+                    if workflow_node["title"] == "问题优化结果解析":
+                        outputs = json.loads(workflow_node["outputs"])  
+                        rewrite_query = outputs["optimize_query"]
+                old_answer = old_result["answer"]
+                new_answer = new_result["answer"]
+            except Exception as e:
+                return None
         return {"问题": q, "问题改写": rewrite_query, "旧流程答案": old_answer, "新流程答案": new_answer}
         
     def run_comparison(self):
@@ -89,7 +90,8 @@ class DifyComparisonTester:
         with tqdm(total=len(questions), desc="处理问题进度") as pbar:
             for q in questions:
                 result = self.process_question(q)
-                results.append(result)
+                if result is not None:
+                    results.append(result)
                 pbar.update(1)
 
         # 生成输出Excel文件