{"id":1233,"date":"2024-04-27T19:31:46","date_gmt":"2024-04-27T19:31:46","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1233"},"modified":"2024-04-27T19:31:46","modified_gmt":"2024-04-27T19:31:46","slug":"langchainpromptzaishoutianxiawoyou","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/langchainpromptzaishoutianxiawoyou.html","title":{"rendered":"langchain:Prompt\u5728\u624b,\u5929\u4e0b\u6211\u6709"},"content":{"rendered":"

\u7b80\u4ecb<\/h1>\n

prompts\u662f\u5927\u8bed\u8a00\u6a21\u578b\u7684\u8f93\u5165\uff0c\u4ed6\u662f\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b\u5e94\u7528\u7684\u5229\u5668\u3002\u6ca1\u6709\u5dee\u7684\u5927\u8bed\u8a00\u6a21\u578b\uff0c\u53ea\u6709\u5dee\u7684prompts\u3002<\/p>\n

\u5199\u597dprompts\u624d\u80fd\u53d1\u6325\u5927\u8bed\u8a00\u6a21\u578b300%\u7684\u529f\u529b\u3002<\/p>\n

\u7406\u8bba\u4e0a\uff0c\u8981\u5199\u597dprompts\u5176\u5b9e\u4e0d\u662f\u90a3\u4e48\u5bb9\u6613\u7684\uff0c\u4f46\u662flangchain\u628a\u8fd9\u4e2a\u7406\u8bba\u53d8\u6210\u4e86\u73b0\u5b9e\uff0c\u4e00\u8d77\u6765\u770b\u770b\u5427\u3002<\/p>\n

\u597d\u7684prompt<\/h1>\n

\u6709\u65f6\u5019\uff0c\u4e0d\u662f\u6211\u4eec\u4f7f\u7528\u7684\u8bed\u8a00\u6a21\u578b\u4e0d\u591f\u597d\uff0c\u800c\u662f\u56e0\u4e3a\u6211\u4eec\u5199\u7684prompt\u4e0d\u591f\u4f18\u79c0\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5199\u597d\u5927\u8bed\u8a00\u6a21\u578b\u7684prompts\u7684\u51e0\u6761\u539f\u5219\uff1a<\/p>\n

    \n
  1. \n

    \u5177\u4f53\u548c\u8be6\u7ec6\uff1aprompts\u5e94\u8be5\u5177\u6709\u660e\u786e\u7684\u95ee\u9898\u6216\u4efb\u52a1\uff0c\u540c\u65f6\u5305\u542b\u8db3\u591f\u7684\u7ec6\u8282\u548c\u80cc\u666f\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5927\u8bed\u8a00\u6a21\u578b\u80fd\u591f\u7406\u89e3\u548c\u56de\u7b54\u3002<\/p>\n<\/li>\n

  2. \n

    \u53ef\u7406\u89e3\u548c\u53ef\u56de\u7b54\uff1aprompts\u5e94\u8be5\u660e\u786e\u6e05\u6670\uff0c\u8ba9\u5927\u8bed\u8a00\u6a21\u578b\u80fd\u591f\u7406\u89e3\u5e76\u4e14\u56de\u7b54\u3002\u907f\u514d\u4f7f\u7528\u8fc7\u4e8e\u62bd\u8c61\u3001\u6a21\u7cca\u6216\u5e26\u6709\u653b\u51fb\u6027\u7684\u8bed\u8a00\u3002<\/p>\n<\/li>\n

  3. \n

    \u6709\u60c5\u5883\u548c\u80cc\u666f\uff1aprompts\u5e94\u8be5\u5305\u542b\u8db3\u591f\u7684\u60c5\u5883\u548c\u80cc\u666f\u4fe1\u606f\uff0c\u8ba9\u5927\u8bed\u8a00\u6a21\u578b\u80fd\u591f\u7406\u89e3\u95ee\u9898\u7684\u91cd\u8981\u6027\u548c\u610f\u4e49\uff0c\u5e76\u5728\u56de\u7b54\u4e2d\u63d0\u4f9b\u6709\u610f\u4e49\u7684\u4fe1\u606f\u3002<\/p>\n<\/li>\n

  4. \n

    \u6709\u76ee\u6807\u548c\u65b9\u5411\uff1aprompts\u5e94\u8be5\u660e\u786e\u95ee\u9898\u6216\u4efb\u52a1\u7684\u76ee\u6807\u548c\u65b9\u5411\uff0c\u4ee5\u4fbf\u5927\u8bed\u8a00\u6a21\u578b\u80fd\u591f\u4e3a\u9700\u8981\u7684\u4fe1\u606f\u63d0\u4f9b\u6e05\u6670\u548c\u6709\u7528\u7684\u7b54\u6848\u3002<\/p>\n<\/li>\n

  5. \n

    \u53ef\u6269\u5c55\u548c\u53ef\u5b9a\u5236\uff1aprompts\u5e94\u8be5\u8bbe\u8ba1\u6210\u6613\u4e8e\u6269\u5c55\u548c\u5b9a\u5236\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u548c\u7528\u6237\u9700\u6c42\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u56e0\u4e3a\u5f88\u591a\u65f6\u5019\uff0c\u5728\u7c7b\u4f3c\u7684\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u7684prompts\u7684\u5927\u4f53\u7ed3\u6784\u662f\u4e00\u6837\u7684\uff0c\u53ea\u6709\u5177\u4f53\u7684\u7ec6\u8282\u63cf\u8ff0\u6709\u6240\u4e0d\u540c\uff0c\u8fd9\u65f6\u5019\uff0c\u5c31\u9700\u8981\u7528\u5230prompt template.<\/p>\n

    \u4ec0\u4e48\u662fprompt template<\/h1>\n

    prompt template\u5c31\u662f\u4e00\u4e2aprompt\u7684\u6a21\u677f\uff0c\u901a\u8fc7prompt template\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u7684\u751f\u6210\u591a\u4e2aprompt\u3002<\/p>\n

    \u57fa\u672c\u4e0aprompt template\u5df2\u7ecf\u5e2e\u6211\u4eec\u63cf\u8ff0\u597d\u4e86\u573a\u666f\uff0c\u8981\u505a\u7684\u4e8b\u60c5\u3002\u6211\u4eec\u53ea\u9700\u8981\u586b\u5165\u5177\u4f53\u7684\u5185\u5bb9\u5373\u53ef\u3002<\/p>\n

    \u4e0b\u9762\u662f\u4e00\u4e2aprompt template\u7684\u7b80\u5355\u4f8b\u5b50\uff1a<\/p>\n

    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from langchain import PromptTemplate<\/span>\n<\/span>\n<\/span>\ntemplate<\/span> = \"\"\"\/<\/span><\/span>\n\u5047\u5982\u4f60\u662f\u4e00\u4e2a\u91d1\u878d\u516c\u53f8\u7684\u7406\u8d22\u7ecf\u7406\uff0c\u8bf7\u4f60\u5206\u6790\u4e00\u4e0b{stock}\u8fd9\u53ea\u80a1\u7968\u3002<\/span>\n\"\"\"<\/span>\n<\/span>\nprompt<\/span> = PromptTemplate.from_template(template)<\/span>\nprompt.format(stock<\/span>=\"\u817e\u8baf\u63a7\u80a1\"<\/span>)<\/span>\n<\/span>\n\u5047\u5982\u4f60\u662f\u4e00\u4e2a\u91d1\u878d\u516c\u53f8\u7684\u7406\u8d22\u7ecf\u7406\uff0c\u8bf7\u4f60\u5206\u6790\u4e00\u4e0b\u817e\u8baf\u63a7\u80a1\u8fd9\u53ea\u80a1\u7968\u3002<\/span>\n<\/code><\/pre>\n
    \u8fd9\u6837\uff0c\u5bf9\u4e8e\u7528\u6237\u6765\u8bf4\uff0c\u53ea\u9700\u8981\u8f93\u5165\u9700\u8981\u95ee\u8be2\u7684\u80a1\u7968\u540d\u79f0\u5373\u53ef\u3002\u5176\u4ed6\u7684\u4e00\u957f\u4e32\u6587\u5b57\u5c31\u4e0d\u9700\u8981\u4e86\uff0c\u5927\u5927\u8282\u7701\u4e86prompt\u6784\u5efa\u7684\u65f6\u95f4\u3002<\/p>\n
    \u5f53\u7136\uff0c\u8fd9\u53ea\u662f\u4e00\u4e2a\u975e\u5e38\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5728prompt template\u4e2d\u8bbe\u7f6e\u56de\u7b54\u7684\u683c\u5f0f\uff0c\u63d0\u4f9b\u5177\u4f53\u7684\u4f8b\u5b50\u7b49\u7b49\uff0c\u4ece\u800c\u5f97\u5230\u66f4\u597d\u7684\u56de\u590d\u3002<\/p>\n
    \u5728langchain\u4e2d\u521b\u5efaprompt template<\/h1>\n
    \u7b80\u5355\u70b9\u8bf4prompt template\u5c31\u662f\u4e00\u4e2a\u683c\u5f0f\u5316\u8f93\u5165\u7684\u4e1c\u897f\u3002\u5728langchain\u4e2d\uff0c\u5bf9\u5e94\u7684\u5de5\u5177\u7c7b\u53eb\u505aPromptTemplate\u3002<\/p>\n
    \u4e0a\u9762\u7684\u7b80\u5355\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u5927\u4f53\u770b\u5230\u4e86\u5982\u4f55\u4f7f\u7528PromptTemplate\u3002<\/p>\n
    \u5728\u4e0a\u4f8b\u4e2d\uff0c\u6211\u4eec\u8c03\u7528\u4e86PromptTemplate.from_template\u65b9\u6cd5\uff0c\u4f20\u5165\u4e86\u4e00\u4e2atemplate\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
    \u5728template\u7684\u5b57\u7b26\u4e32\u4e2d\uff0c\u6211\u4eec\u7528\u62ec\u53f7\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53d8\u91cf\u3002\u6700\u540e\u8c03\u7528prompt.format\u65b9\u6cd5\uff0c\u6307\u5b9a\u53d8\u91cf\u7684\u540d\u79f0\u548c\u503c\uff0c\u5b8c\u6210prompt\u7684\u6700\u7ec8\u521b\u5efa\u3002<\/p>\n
    \u53e6\u5916\uff0cprompt template\u4e2d\u8fd8\u53ef\u4ee5\u6307\u5b9a\u591a\u4e2a\u53d8\u91cf\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>template<\/span> = \"\u8bf7\u544a\u8bc9\u6211\u4e00\u4e2a\u5173\u4e8e{personA}\u7684{thingsB}\"<\/span><\/span>\n<\/span>\nprompt_template<\/span> = PromptTemplate.from_template(template)<\/span>\nprompt_template.format(personA<\/span>=\"\u5c0f\u5f20\"<\/span>, thingsB=\"\u6545\u4e8b\"<\/span>)<\/span>\n<\/code><\/pre>\n
    \u53ea\u9700\u8981\u5728format\u4e2d\u6307\u5b9a\u53d8\u91cf\u540d\u79f0\u5373\u53ef\u3002<\/p>\n
    \u9664\u4e86\u662f\u7528PromptTemplate.from_template\u65b9\u6cd5\u4e4b\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528PromptTemplate\u7684\u6784\u9020\u51fd\u6570\u6765\u521b\u5efaprompt\u3002<\/p>\n
    PromptTemplate\u7684\u6784\u9020\u51fd\u6570\u53ef\u4ee5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1ainput_variables\u548ctemplate\u3002<\/p>\n
    input_variables\u662ftemplate\u4e2d\u7684\u53d8\u91cf\u540d\u5b57\uff0c\u5b83\u662f\u4e00\u4e2a\u6570\u7ec4\u3002<\/p>\n
    template\u5c31\u662f\u6a21\u677f\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u662f\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n
    \u6bd4\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u6784\u9020\u65e0\u53d8\u91cf\u7684\u6a21\u677f\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>no_input_prompt<\/span> = PromptTemplate(input_variables=[], template=\"\u8fd9\u662f\u4e00\u4e2a\u65e0\u53c2\u6570\u6a21\u677f\u3002\"<\/span>)<\/span>\nno_input_prompt.format()<\/span>\n<\/code><\/pre>\n
    \u6211\u4eec\u8fd8\u53ef\u4ee5\u6784\u9020\u5e26\u53c2\u6570\u6a21\u677f\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>one_input_prompt<\/span> = PromptTemplate(input_variables=[\"stock\"<\/span>], template=\"\u5047\u5982\u4f60\u662f\u4e00\u4e2a\u91d1\u878d\u516c\u53f8\u7684\u7406\u8d22\u7ecf\u7406\uff0c\u8bf7\u4f60\u5206\u6790\u4e00\u4e0b{stock}\u8fd9\u53ea\u80a1\u7968\u3002\"<\/span>)<\/span>\none_input_prompt.format(stock<\/span>=\"\u817e\u8baf\u63a7\u80a1\"<\/span>)<\/span>\n<\/code><\/pre>\n
    \u8fd8\u6709\u591a\u4e2a\u53c2\u6570\u7684\u6a21\u677f\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>multiple_input_prompt<\/span> = PromptTemplate(<\/span>\n    input_variables<\/span>=[\"personA\"<\/span>, \"thingsB\"<\/span>], <\/span>\n    template<\/span>=\"\u8bf7\u544a\u8bc9\u6211\u4e00\u4e2a\u5173\u4e8e{personA}\u7684{thingsB}\"<\/span><\/span>\n)<\/span>\nmultiple_input_prompt.format(personA<\/span>=\"\u5c0f\u5f20\"<\/span>, thingsB=\"\u6545\u4e8b\"<\/span>)<\/span>\n<\/code><\/pre>\n
    Chat\u7279\u6709\u7684prompt template<\/h1>\n
    \u4e4b\u524d\u5728\u4ecb\u7ecdlangchain\u7684\u65f6\u5019\u6709\u8ddf\u5927\u5bb6\u63d0\u5230\u8fc7\uff0cchat\u867d\u7136\u662f\u57fa\u4e8eLLM\u7684\uff0c\u4f46\u662f\u548c\u57fa\u672c\u7684LLM\u8fd8\u6709\u6709\u533a\u522b\u7684\u3002<\/p>\n
    \u6700\u4e3b\u8981\u7684\u533a\u522b\u5728\u4e8e\uff0cchat\u6d88\u606f\u662f\u4e0d\u540c\u89d2\u8272\u7684\u3002\u6bd4\u5982\u5728openai\u4e2d\uff0cchat\u6d88\u606f\u5c31\u53ef\u4ee5\u88ab\u5206\u4e3aAI, human\u6216\u8005system\u8fd9\u51e0\u79cd\u89d2\u8272\u3002<\/p>\n
    \u8fd9\u6837\u505a\u867d\u7136\u590d\u6742\u4e86\u4e00\u70b9\uff0c\u4f46\u662f\u53ef\u4ee5\u66f4\u597d\u7684\u5bf9\u6d88\u606f\u8fdb\u884c\u5206\u7c7b\u5904\u7406\u3002<\/p>\n
    \u6211\u4eec\u770b\u4e0blangchain\u4e2d\u5173\u4e8echat\u7684PromptTemplate\u6709\u54ea\u4e9b\uff1a<\/p>\n
    <\/div>
    javascript<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> langchain.prompts<\/span> import<\/span> (<\/span>\n    ChatPromptTemplate<\/span>,<\/span>\n    PromptTemplate<\/span>,<\/span>\n    SystemMessagePromptTemplate<\/span>,<\/span>\n    AIMessagePromptTemplate<\/span>,<\/span>\n    HumanMessagePromptTemplate<\/span>,<\/span>\n)<\/span>\n<\/code><\/pre>\n
    \u548c\u666e\u901a\u7684prompt template\u4e00\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u7528MessagePromptTemplate\u7684from_template\u6765\u521b\u5efa\u5bf9\u5e94\u7684prompt\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>template<\/span>=\"\u73b0\u5728\u4f60\u7684\u89d2\u8272\u662f{role},\u8bf7\u6309\u8be5\u89d2\u8272\u8fdb\u884c\u540e\u7eed\u7684\u5bf9\u8bdd.\"<\/span><\/span>\nsystem_message_prompt<\/span> = SystemMessagePromptTemplate.from_template(template)<\/span>\nhuman_template<\/span>=\"{text}\"<\/span><\/span>\nhuman_message_prompt<\/span> = HumanMessagePromptTemplate.from_template(human_template)<\/span>\n<\/code><\/pre>\n
    \u5f53\u7136\u4f60\u53ef\u4ee5\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6765\u521b\u5efaprompt\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>prompt<\/span>=PromptTemplate(<\/span>\n    template<\/span>=\"\u73b0\u5728\u4f60\u7684\u89d2\u8272\u662f{role},\u8bf7\u6309\u8be5\u89d2\u8272\u8fdb\u884c\u540e\u7eed\u7684\u5bf9\u8bdd.\"<\/span>,<\/span>\n    input_variables<\/span>=[\"role\"<\/span>],<\/span>\n)<\/span>\n<\/span>\n<\/code><\/pre>\n
    \u6709\u4e86\u4e00\u4e2a\u6216\u8005\u591a\u4e2aMessagePromptTemplates\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9bMessagePromptTemplates\u6765\u6784\u5efaChatPromptTemplate\u4e86\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>chat_prompt<\/span> = ChatPromptTemplate.from_messages([system_message_prompt, human_message_prompt])<\/span>\n<\/span>\nchat_prompt.format_prompt(role<\/span>=\"\u533b\u751f\"<\/span>, text=\"\u5e2e\u6211\u770b\u770b\u6211\u7684\u989c\u503c\u8fd8\u884c\u5417\uff1f\"<\/span>).to_messages()<\/span>\n<\/code><\/pre>\n
    \u603b\u7ed3<\/h1>\n
    \u597d\u4e86\uff0c \u57fa\u672c\u7684langchain\u4e2d\u7684prompt template\u5df2\u7ecf\u4ecb\u7ecd\u5b8c\u6bd5\u3002\u5927\u5bb6\u53bb\u8bd5\u8bd5\u770b\u5427\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    prompts\u662f\u5927\u8bed\u8a00\u6a21\u578b\u7684\u8f93\u5165\uff0c\u4ed6\u662f\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b\u5e94\u7528\u7684\u5229\u5668\u3002\u6ca1\u6709\u5dee\u7684\u5927\u8bed\u8a00\u6a21\u578b\uff0c\u53ea\u6709\u5dee\u7684prompts\u3002 \u5199\u597dprompts\u624d\u80fd\u53d1\u6325\u5927\u8bed\u8a00\u6a21\u578b300%\u7684\u529f\u529b\u3002 \u7406\u8bba\u4e0a\uff0c\u8981\u5199\u597dprompts\u5176<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"LangChain\u6307\u5357\uff1a \u4f18\u5316Prompt\uff0c\u63d0\u5347\u5927\u8bed\u8a00\u6a21\u578b\u6548\u679c - \u5948\u65af\u79d1\u6280\u793e\u533a","rank_math_description":"LangChain\u6559\u7a0b\uff1a \u63a2\u7d22Prompt Engineering\u7684\u5965\u79d8\uff0c\u5b66\u4e60\u5982\u4f55\u6784\u5efa\u4f18\u8d28Prompt\uff0c\u6700\u5927\u5316\u53d1\u6325\u5927\u8bed\u8a00\u6a21\u578b\u7684\u6f5c\u529b\u3002","rank_math_focus_keyword":"LangChain, Prompt Engineering, \u5927\u8bed\u8a00\u6a21\u578b, Prompts, Prompt Templates","views":"32","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1233","post","type-post","status-publish","format-standard","hentry","category-fenlei2","tag-gpt","tag-ai","tag-128","tag-129","tag-136"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/comments?post=1233"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1233\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1233"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}