Update local_doc_qa.py

chains/local_doc_qa.py

@@ -117,9 +117,6 @@ class LocalDocQA:
     
     问题:
     {question}"""
-        if  vs_path is None or vs_path =="":# or (not os.path.exists(vs_path))
-            result = self.llm.chat(query)
-        else:
         prompt = PromptTemplate(
             template=prompt_template,
             input_variables=["context", "question"]
@@ -136,7 +133,7 @@ class LocalDocQA:
         )
 
         knowledge_chain.return_source_documents = True
-
         result = knowledge_chain({"query": query})
+            
         self.llm.history[-1][0] = query
         return result, self.llm.history