某些场景会要求ChatGPT重复处理同一个操作，要么在问题里面加入Prompt，要么用自己Prompt替换LangChain默认Prompt。

直接看看前后对比结果

LangChain默认的Prompt

template="Use the following pieces of context to answer the users question. \nIf you don't know the answer, just say that you don't know, don't try to make up an answer.\n----------------\n{context}"

我自己Prompt替换了之后

template="Use the following pieces of context to answer the users question in Chinese.\n    If you don't know the answer, just say that you don't know, don't try to make up an answer.\n    There are multiple answers, provide each answer in Chinese,specify the source file for each answer.\n    \n\n{context}

源代码如下：

def getMyPrompt():'''自定义Prompt模板'''prompt_template = """Use the following pieces of context to answer the users question in Chinese.If you don't know the answer, just say that you don't know, don't try to make up an answer.There are multiple answers, provide each answer in Chinese,specify the source file for each answer.\n\n{context}\n\nQuestion: {question}\n\nAnswer in Chinese:"""MyPrompt = PromptTemplate(template=prompt_template, input_variables=["context","question"]#必须有上下文context和问题question)return MyPromptdb_RTCS = Chroma(persist_directory="./RCTS/", embedding_function=embeddings)
print('----------------')
chain_type_kwargs = {"prompt": getMyPrompt()}#用自己的Prompt替换掉langchain默认的Prompt
qa_RTCS = RetrievalQA.from_chain_type(llm=openAiLLm,chain_type="stuff",retriever=db_RTCS.as_retriever(),chain_type_kwargs=chain_type_kwargs)print(qa_RTCS)#查看自定义Prompt的结构体内容