Update app.py

app.py

@@ -105,7 +105,7 @@ def infer(message:str, history: list):
             documents, option = extract_web(message["text"])
             db_path = create_col(documents)
         elif not message["text"].startswith("http://") and not message["text"].startswith("https://") and len(history) == 0:
-            return gr.Error("Please input an url or upload file at first.")
+            raise gr.Error("请先输入网址或上传文档。")
             
 
     # Load from disk
@@ -123,7 +123,7 @@ def infer(message:str, history: list):
     )
 
     if option == "web" and len(history) == 0:
-        response = "Get the web data! You can ask it."   
+        response = "获取成功，开始对话吧！"   
     else: 
         question = message['text']
 
@@ -131,10 +131,11 @@ def infer(message:str, history: list):
             index.as_retriever(),
             memory=memory,
             context_prompt=(
-                "You are a chatbot, able to have normal interactions, as well as talk"
-                " about the Kendrick and Drake beef."
-                "Here are the relevant documents for the context:\n"
+                "You are an assistant for question-answering tasks."
+                "Use the following context to answer the question:\n"
                 "{context_str}"
+                "\nIf you don't know the answer, just say that you don't know."
+                "Use five sentences maximum and keep the answer concise, all response in Chinese."
                 "\nInstruction: Use the previous chat history, or the context above, to interact and help the user."
             ),
             verbose=True,
@@ -155,9 +156,9 @@ def infer(message:str, history: list):
 
 
 
-chatbot = gr.Chatbot()
+chatbot = gr.Chatbot(placeholder="请先输入网址或上传文档<br>然后进行对话")
 
-with gr.Blocks(theme="soft") as demo:
+with gr.Blocks(theme="soft", fill_height="true") as demo:
     gr.ChatInterface(
         fn = infer,
         title = "RAG demo",