{"id":1185,"date":"2024-04-24T15:47:43","date_gmt":"2024-04-24T15:47:43","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1185"},"modified":"2024-04-24T15:47:43","modified_gmt":"2024-04-24T15:47:43","slug":"langchainshillmjiaoxiangyuedezhihuijia","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/langchainshillmjiaoxiangyuedezhihuijia.html","title":{"rendered":"LangChain \u662f LLM \u4ea4\u54cd\u4e50\u7684\u6307\u6325\u5bb6"},"content":{"rendered":"

\u672c\u6587\u5206\u4eab LangChain \u6846\u67b6\u4e2d\u4e00\u4e2a\u5f15\u4eba\u5165\u80dc\u7684\u6982\u5ff5 Prompt Templates<\/code>\u3002\u5982\u679c\u70ed\u8877\u4e8e\u8bed\u8a00\u6a21\u578b\u5e76\u4e14\u70ed\u7231 Python\uff0c\u90a3\u4e48\u5c06\u4f1a\u5927\u9971\u53e3\u798f\u3002<\/p>\n

\u6df1\u5165\u4e86\u89e3 LangChain \u7684\u4e16\u754c\uff0c\u8fd9\u4e2a\u6846\u67b6\u5728\u6211\u4f5c\u4e3a\u5f00\u53d1\u8005\u7684\u65c5\u7a0b\u4e2d\u6539\u53d8\u4e86\u6e38\u620f\u89c4\u5219\u3002<\/p>\n

LangChain \u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u5b83\u4e00\u76f4\u662f\u6211\u4f5c\u4e3a\u5f00\u53d1\u8005\u65c5\u9014\u4e2d\u7684\u89c4\u5219\u6539\u53d8\u8005\u3002 LangChain \u662f\u4e00\u4e2a\u72ec\u7279\u7684\u5de5\u5177\uff0c\u5b83\u5229\u7528\u5927\u8bed\u8a00\u6a21\u578b\uff08LLMs\uff09\u7684\u529b\u91cf\u4e3a\u5404\u79cd\u4f7f\u7528\u6848\u4f8b\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002Harrison Chase \u7684\u8fd9\u4e2a\u521b\u610f\u4e8e 2022 \u5e74 10 \u6708\u4f5c\u4e3a\u5f00\u6e90\u9879\u76ee\u9996\u6b21\u4eae\u76f8\u3002\u4ece\u90a3\u65f6\u8d77\uff0c\u5b83\u5c31\u6210\u4e3a GitHub \u5b87\u5b99\u4e2d\u4e00\u9897\u95ea\u4eae\u7684\u660e\u661f\uff0c\u62e5\u6709\u9ad8\u8fbe 42,000<\/code> \u9897\u661f\uff0c\u5e76\u6709\u8d85\u8fc7 800<\/code> \u540d\u5f00\u53d1\u8005\u7684\u8d21\u732e\u3002<\/p>\n

LangChain \u5c31\u50cf\u4e00\u4f4d\u5927\u5e08\uff0c\u6307\u6325\u7740 OpenAI \u548c HuggingFace Hub \u7b49 LLM \u6a21\u578b\u4ee5\u53ca Google\u3001Wikipedia\u3001Notion \u548c Wolfram \u7b49\u5916\u90e8\u8d44\u6e90\u7684\u7ba1\u5f26\u4e50\u961f\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u62bd\u8c61\uff08\u94fe\u548c\u4ee3\u7406\uff09\u548c\u5de5\u5177\uff08\u63d0\u793a\u6a21\u677f\u3001\u5185\u5b58\u3001\u6587\u6863\u52a0\u8f7d\u5668\u3001\u8f93\u51fa\u89e3\u6790\u5668\uff09\uff0c\u5145\u5f53\u6587\u672c\u8f93\u5165\u548c\u8f93\u51fa\u4e4b\u95f4\u7684\u6865\u6881\u3002\u8fd9\u4e9b\u6a21\u578b\u548c\u7ec4\u4ef6\u94fe\u63a5\u5230\u7ba1\u9053\u94fe<\/code>\u4e2d\uff0c\u8fd9\u8ba9\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u8f7b\u800c\u6613\u4e3e\u5730\u5feb\u901f\u6784\u5efa\u5065\u58ee\u7684\u5e94\u7528\u7a0b\u5e8f\u539f\u578b\u3002\u672c\u8d28\u4e0a\uff0cLangChain \u662f LLM \u4ea4\u54cd\u4e50\u7684\u6307\u6325\u5bb6\u3002<\/p>\n

LangChain \u7684\u771f\u6b63\u4f18\u52bf\u5728\u4e8e\u5b83\u7684\u4e03\u4e2a\u5173\u952e\u6a21\u5757\uff1a<\/p>\n

    \n
  1. \u6a21\u578b<\/strong>\uff1a\u8fd9\u4e9b\u662f\u6784\u6210\u5e94\u7528\u7a0b\u5e8f\u4e3b\u5e72\u7684\u5c01\u95ed\u6216\u5f00\u6e90 LLM<\/li>\n
  2. \u63d0\u793a<\/strong>\uff1a\u8fd9\u4e9b\u662f\u63a5\u53d7\u7528\u6237\u8f93\u5165\u548c\u8f93\u51fa\u89e3\u6790\u5668\u7684\u6a21\u677f\uff0c\u8fd9\u4e9b\u89e3\u6790\u5668\u683c\u5f0f\u5316 LLM \u6a21\u578b\u7684\u8f93\u51fa\u3002<\/li>\n
  3. \u7d22\u5f15<\/strong>\uff1a\u8be5\u6a21\u5757\u51c6\u5907\u548c\u6784\u5efa\u6570\u636e\uff0c\u4ee5\u4fbf LLM \u6a21\u578b\u53ef\u4ee5\u6709\u6548\u5730\u4e0e\u5b83\u4eec\u4ea4\u4e92\u3002<\/li>\n
  4. \u8bb0\u5fc6<\/strong>\uff1a\u8fd9\u4e3a\u94fe\u6216\u4ee3\u7406\u63d0\u4f9b\u4e86\u77ed\u671f\u548c\u957f\u671f\u8bb0\u5fc6\u7684\u80fd\u529b\uff0c\u4f7f\u5b83\u4eec\u80fd\u591f\u8bb0\u4f4f\u4ee5\u524d\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\u3002<\/li>\n
  5. \u94fe<\/strong>\uff1a\u8fd9\u662f\u4e00\u79cd\u5728\u5355\u4e2a\u7ba1\u9053\uff08\u6216\u201c\u94fe\u201d\uff09\u4e2d\u7ec4\u5408\u591a\u4e2a\u7ec4\u4ef6\u6216\u5176\u4ed6\u94fe\u7684\u65b9\u6cd5\u3002<\/li>\n
  6. \u4ee3\u7406\u4eba<\/strong>\uff1a\u6839\u636e\u8f93\u5165\u51b3\u5b9a\u4f7f\u7528\u53ef\u7528\u5de5\u5177\/\u6570\u636e\u91c7\u53d6\u7684\u884c\u52a8\u65b9\u6848\u3002<\/li>\n
  7. \u56de\u8c03<\/strong>\uff1a\u8fd9\u4e9b\u662f\u5728 LLM \u8fd0\u884c\u671f\u95f4\u7684\u7279\u5b9a\u70b9\u89e6\u53d1\u4ee5\u6267\u884c\u7684\u51fd\u6570\u3002<\/li>\n<\/ol>\n

    GitHub\uff1apython.langchain.com\/<\/a><\/p>\n

    \u4ec0\u4e48\u662f\u63d0\u793a\u6a21\u677f\uff1f<\/h3>\n

    \u5728\u8bed\u8a00\u6a21\u578b\u7684\u4e16\u754c\u4e2d\uff0c\u63d0\u793a\u662f\u4e00\u6bb5\u6587\u672c\uff0c\u6307\u793a\u6a21\u578b\u751f\u6210\u7279\u5b9a\u7c7b\u578b\u7684\u54cd\u5e94\u3002\u987e\u540d\u601d\u4e49\uff0c\u63d0\u793a\u6a21\u677f\u662f\u751f\u6210\u6b64\u7c7b\u63d0\u793a\u7684\u53ef\u91cd\u590d\u65b9\u6cd5\u3002\u5b83\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u6587\u672c\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u63a5\u6536\u6765\u81ea\u6700\u7ec8\u7528\u6237\u7684\u4e00\u7ec4\u53c2\u6570\u5e76\u76f8\u5e94\u5730\u751f\u6210\u63d0\u793a\u3002<\/p>\n

    \u63d0\u793a\u6a21\u677f\u53ef\u4ee5\u5305\u542b\u8bed\u8a00\u6a21\u578b\u7684\u8bf4\u660e\u3001\u4e00\u7ec4\u7528\u4e8e\u6307\u5bfc\u6a21\u578b\u54cd\u5e94\u7684\u5c11\u91cf\u793a\u4f8b\u4ee5\u53ca\u6a21\u578b\u7684\u95ee\u9898\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n

    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from langchain import PromptTemplate<\/span>\n<\/span>\ntemplate<\/span> = \"\"\"<\/span><\/span>\nI want you to act as a naming consultant for new companies.<\/span>\nWhat is a good name for a company that makes {product}?<\/span>\n\"\"\"<\/span>\n<\/span>\nprompt<\/span> = PromptTemplate(<\/span>\n input_variables<\/span>=[\"product\"<\/span>],<\/span>\n template<\/span>=template,<\/span>\n)<\/span>\n<\/span>\nprompt.format(product<\/span>=\"colorful socks\"<\/span>)<\/span>\n<\/code><\/pre>\n
    \u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u63d0\u793a\u6a21\u677f\u8981\u6c42\u8bed\u8a00\u6a21\u578b\u4e3a\u751f\u4ea7\u7279\u5b9a\u4ea7\u54c1\u7684\u516c\u53f8\u5efa\u8bae\u540d\u79f0\u3002product<\/code> \u662f\u4e00\u4e2a\u53d8\u91cf\uff0c\u53ef\u4ee5\u66ff\u6362\u4e3a\u4efb\u4f55\u4ea7\u54c1\u540d\u79f0\u3002<\/p>\n
    \u521b\u5efa\u63d0\u793a\u6a21\u677f<\/h3>\n
    \u5728 LangChain \u4e2d\u521b\u5efa\u63d0\u793a\u6a21\u677f\u975e\u5e38\u7b80\u5355\u3002\u53ef\u4ee5\u4f7f\u7528\u8be5\u7c7b\u521b\u5efa\u7b80\u5355\u7684\u786c\u7f16\u7801\u63d0\u793a PromptTemplate<\/code>\u3002\u8fd9\u4e9b\u6a21\u677f\u53ef\u4ee5\u91c7\u7528\u4efb\u610f\u6570\u91cf\u7684\u8f93\u5165\u53d8\u91cf\uff0c\u5e76\u4e14\u53ef\u4ee5\u683c\u5f0f\u5316\u4ee5\u751f\u6210\u63d0\u793a\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u6ca1\u6709\u8f93\u5165\u53d8\u91cf\u3001\u4e00\u4e2a\u8f93\u5165\u53d8\u91cf\u548c\u591a\u4e2a\u8f93\u5165\u53d8\u91cf\u7684\u63d0\u793a\u6a21\u677f\uff1a<\/p>\n
    <\/div>
    ini<\/span>
    \u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from langchain import PromptTemplate<\/span>\n<\/span>\n# No Input Variable \u65e0\u8f93\u5165\u53d8\u91cf<\/span><\/span>\nno_input_prompt<\/span> = PromptTemplate(input_variables=[], template=\"Tell me a joke.\"<\/span>)<\/span>\nprint(no_input_prompt.format())  <\/span>\n<\/span>\n# One Input Variable \u4e00\u4e2a\u8f93\u5165\u53d8\u91cf<\/span><\/span>\none_input_prompt<\/span> = PromptTemplate(input_variables=[\"adjective\"<\/span>], template=\"Tell me a {adjective} joke.\"<\/span>)<\/span>\nprint(one_input_prompt.format(adjective<\/span>=\"funny\"<\/span>))  <\/span>\n<\/span>\n# Multiple Input Variables \u591a\u4e2a\u8f93\u5165\u53d8\u91cf<\/span><\/span>\nmultiple_input_prompt<\/span> = PromptTemplate(<\/span>\n input_variables<\/span>=[\"adjective\"<\/span>, \"content\"<\/span>], <\/span>\n template<\/span>=\"Tell me a {adjective} joke about {content}.\"<\/span><\/span>\n)<\/span>\nprint(multiple_input_prompt.format(adjective<\/span>=\"funny\"<\/span>, content=\"chickens\"<\/span>))  <\/span>\n<\/code><\/pre>\n
    \u603b\u7ed3<\/h3>\n
    \u603b\u4e4b\uff0cLangChain \u4e2d\u7684\u63d0\u793a\u6a21\u677f\u662f\u4e3a\u8bed\u8a00\u6a21\u578b\u751f\u6210\u52a8\u6001\u63d0\u793a\u7684\u5f3a\u5927\u5de5\u5177\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u5bf9\u63d0\u793a\u7684\u7075\u6d3b\u6027\u548c\u63a7\u5236\uff0c\u80fd\u591f\u6709\u6548\u5730\u6307\u5bfc\u6a21\u578b\u7684\u54cd\u5e94\u3002\u65e0\u8bba\u662f\u4e3a\u7279\u5b9a\u4efb\u52a1\u521b\u5efa\u8bed\u8a00\u6a21\u578b\u8fd8\u662f\u63a2\u7d22\u8bed\u8a00\u6a21\u578b\u7684\u529f\u80fd\uff0c\u63d0\u793a\u6a21\u677f\u90fd\u53ef\u4ee5\u6539\u53d8\u6e38\u620f\u89c4\u5219\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u672c\u6587\u5206\u4eab LangChain \u6846\u67b6\u4e2d\u4e00\u4e2a\u5f15\u4eba\u5165\u80dc\u7684\u6982\u5ff5 Prompt Templates\u3002\u5982\u679c\u70ed\u8877\u4e8e\u8bed\u8a00\u6a21\u578b\u5e76\u4e14\u70ed\u7231 Python\uff0c\u90a3\u4e48\u5c06\u4f1a\u5927\u9971\u53e3\u798f\u3002<\/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\u6846\u67b6\uff1a\u7528\u63d0\u793a\u6a21\u677f\u73a9\u8f6cLLMs - \u5948\u65af\u79d1\u6280\u793e\u533a","rank_math_description":"\u60f3\u8981\u5229\u7528\u5927\u8bed\u8a00\u6a21\u578b\u6784\u5efa\u5f3a\u5927\u5e94\u7528\uff1fLangChain\u6846\u67b6\u63d0\u4f9b\u63d0\u793a\u6a21\u677f\u7b49\u5de5\u5177\uff0c\u52a9\u60a8\u8f7b\u677e\u9a7e\u9a6dLLMs\u7684\u9b54\u529b\uff01\u672c\u6587\u6df1\u5165\u89e3\u6790LangChain\u7684\u4f18\u52bf\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u52a9\u60a8\u5f00\u542f\u5f00\u53d1\u65b0\u7bc7\u7ae0\u3002","rank_math_focus_keyword":"LangChain, \u63d0\u793a\u6a21\u677f, Python, \u5927\u8bed\u8a00\u6a21\u578b, \u5f00\u53d1\u6846\u67b6","views":"11","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1185","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\/1185","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=1185"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1185\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1185"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}