{"id":87969,"date":"2026-07-31T09:08:29","date_gmt":"2026-07-31T01:08:29","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/87969.html"},"modified":"2026-07-31T09:08:29","modified_gmt":"2026-07-31T01:08:29","slug":"day-026%ef%bd%9c%e7%9f%ad%e6%9c%9f%e8%ae%b0%e5%bf%86%e5%92%8c%e9%95%bf%e6%9c%9f%e8%ae%b0%e5%bf%86%ef%bc%9alanggraph-%e7%9a%84%e8%ae%b0%e5%bf%86%e6%80%8e%e4%b9%88%e8%90%bd%e5%9c%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/87969.html","title":{"rendered":"Day 026\uff5c\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\uff1aLangGraph \u7684\u8bb0\u5fc6\u600e\u4e48\u843d\u5730"},"content":{"rendered":"

\u7cfb\u5217：100 \u5929\u7cfb\u7edf\u5b66\u4e60 AI Agent \u5f00\u53d1
\n\u5f53\u524d\u9636\u6bb5：LangChain \u4e0e LangGraph \u5de5\u7a0b\u5316
\n\u4eca\u65e5\u76ee\u6807：\u77ed\u671f\u8bb0\u5fc6\u670d\u52a1\u5f53\u524d\u7ebf\u7a0b，\u957f\u671f\u8bb0\u5fc6\u670d\u52a1\u8de8\u4f1a\u8bdd\u504f\u597d\u3001\u4e8b\u5b9e\u548c\u7ecf\u9a8c\u3002<\/p>\n

Day 008 \u8bb2\u7684\u662f\u201c\u8be5\u8bb0\u4ec0\u4e48\u201d，\u4eca\u5929\u8981\u56de\u7b54\u201c\u653e\u5728\u54ea\u91cc\u201d<\/h3>\n

\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\u7684\u6982\u5ff5\u5df2\u7ecf\u51fa\u73b0\u8fc7\u4e00\u6b21\u3002\u8fdb\u5165 LangGraph \u540e，\u533a\u522b\u53d8\u5f97\u66f4\u5de5\u7a0b\u5316：\u5f53\u524d thread \u7684\u5bf9\u8bdd\u548c\u4efb\u52a1\u8fdb\u5ea6，\u9002\u5408\u968f checkpoint \u4fdd\u5b58；\u8de8 thread \u4ecd\u9700\u590d\u7528\u7684\u7528\u6237\u76ee\u6807\u3001\u504f\u597d\u6216\u5df2\u786e\u8ba4\u4e8b\u5b9e，\u5219\u8fdb\u5165\u72ec\u7acb store，\u5e76\u6309\u7528\u6237\u4e0e\u547d\u540d\u7a7a\u95f4\u9694\u79bb\u3002<\/p>\n

\u6211\u4e0d\u60f3\u628a\u201c\u81ea\u52a8\u8bb0\u5fc6\u201d\u5f53\u5356\u70b9\u3002\u8bb0\u5fc6\u5199\u9519\u4e00\u6b21，\u53ef\u80fd\u5f71\u54cd\u4e4b\u540e\u5f88\u591a\u6b21\u8fd0\u884c\u3002\u7cfb\u7edf\u5fc5\u987b\u80fd\u89e3\u91ca\u6765\u6e90\u3001\u66f4\u65b0\u3001\u8fc7\u671f\u548c\u5220\u9664\u3002<\/p>\n

Thread \u4e0e Store \u7684\u8fb9\u754c<\/h3>\n\n\u5185\u5bb9\u77ed\u671f \/ thread\u957f\u671f \/ store\u539f\u56e0<\/tr>\n\n\n\n\n\n\n\n\n\n
\u672c\u8f6e\u7528\u6237\u95ee\u9898<\/td>\n\u662f<\/td>\n\u5426<\/td>\n\u53ea\u670d\u52a1\u5f53\u524d\u8bed\u5883<\/td>\n<\/tr>\n
\u5f53\u524d\u8282\u70b9\u548c\u91cd\u8bd5\u6b21\u6570<\/td>\n\u662f<\/td>\n\u5426<\/td>\n\u5c5e\u4e8e\u4efb\u52a1\u72b6\u6001<\/td>\n<\/tr>\n
\u7528\u6237\u786e\u8ba4\u7684 100 \u5929\u5b66\u4e60\u76ee\u6807<\/td>\n\u53ef\u5f15\u7528<\/td>\n\u662f<\/td>\n\u8de8\u4f1a\u8bdd\u7a33\u5b9a<\/td>\n<\/tr>\n
\u201c\u6700\u8fd1\u6709\u70b9\u5fd9\u201d<\/td>\n\u5148\u77ed\u671f<\/td>\n\u7ecf\u786e\u8ba4\u4e14\u8bbe TTL \u624d\u8003\u8651<\/td>\n\u53ef\u80fd\u53ea\u662f\u4e34\u65f6\u72b6\u6001<\/td>\n<\/tr>\n
\u5df2\u5b8c\u6210 Day 18<\/td>\n\u5f53\u524d\u72b6\u6001\u53ef\u7f13\u5b58<\/td>\n\u662f，\u7531\u8fdb\u5ea6\u4e8b\u4ef6\u66f4\u65b0<\/td>\n\u8de8\u4f1a\u8bdd\u4e8b\u5b9e<\/td>\n<\/tr>\n
\u5de5\u5177\u8d85\u65f6<\/td>\ntrace\/checkpoint<\/td>\n\u5426<\/td>\n\u4e0d\u662f\u7528\u6237\u753b\u50cf<\/td>\n<\/tr>\n
\u63a8\u6d4b\u7528\u6237\u4e0d\u64c5\u957f RAG<\/td>\n\u53ef\u4f5c\u4e3a\u672c\u8f6e\u5047\u8bbe<\/td>\n\u8c28\u614e，\u9700\u8bc4\u6d4b\u8bc1\u636e<\/td>\n\u63a8\u65ad\u53ef\u80fd\u9519<\/td>\n<\/tr>\n
API \u5bc6\u94a5<\/td>\n\u5426<\/td>\n\u5426<\/td>\n\u4e0d\u5e94\u8fdb\u5165\u6a21\u578b\u8bb0\u5fc6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5b66\u4e60\u52a9\u624b\u7684 memory store<\/h3>\n

{<\/span>
\n "namespace"<\/span>:<\/span> [<\/span>"users"<\/span>,<\/span> "example-user"<\/span>,<\/span> "learning"<\/span>]<\/span>,<\/span>
\n "key"<\/span>:<\/span> "progress"<\/span>,<\/span>
\n "value"<\/span>:<\/span> {<\/span>
\n "goal"<\/span>:<\/span> "\u5b8c\u6210 AI Agent 100 \u5929\u8def\u7ebf"<\/span>,<\/span>
\n "completed_days"<\/span>:<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>,<\/span>
\n "weak_topics"<\/span>:<\/span> [<\/span>
\n {<\/span>
\n "topic"<\/span>:<\/span> "RAG \u8bc4\u6d4b"<\/span>,<\/span>
\n "kind"<\/span>:<\/span> "inference"<\/span>,<\/span>
\n "evidence_ids"<\/span>:<\/span> [<\/span>"eval-case-07"<\/span>]<\/span>,<\/span>
\n "confidence"<\/span>:<\/span> "low"<\/span>
\n }<\/span>
\n ]<\/span>,<\/span>
\n "preferred_stack"<\/span>:<\/span> [<\/span>"Python"<\/span>]<\/span>
\n }<\/span>,<\/span>
\n "source"<\/span>:<\/span> "user_confirmed_and_progress_events"<\/span>,<\/span>
\n "updated_at"<\/span>:<\/span> "\u771f\u5b9e\u5199\u5165\u65f6\u751f\u6210"<\/span>,<\/span>
\n "expires_at"<\/span>:<\/span> null<\/span>,<\/span>
\n "schema_version"<\/span>:<\/span> 1<\/span>
\n}<\/span><\/p>\n

\u793a\u4f8b\u91cc\u7684 completed_days \u53ea\u662f\u7ed3\u6784\u5360\u4f4d，\u4e0d\u4ee3\u8868\u771f\u5b9e\u7528\u6237\u8fdb\u5ea6\u3002\u771f\u6b63\u6570\u636e\u8981\u7531\u5b8c\u6210\u4e8b\u4ef6\u66f4\u65b0，\u4e0d\u80fd\u8ba9\u6a21\u578b\u628a\u201c\u6211\u51c6\u5907\u5b66 Day 20\u201d\u8bef\u5199\u4e3a\u201c\u5df2\u7ecf\u5b8c\u6210 Day 20\u201d\u3002<\/p>\n

\u5199\u5165\u6bd4\u8bfb\u53d6\u66f4\u9700\u8981\u89c4\u5219<\/h3>\n

#mermaid-svg-y7JgMdOCbkc2JIL4{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-y7JgMdOCbkc2JIL4 .error-icon{fill:#552222;}#mermaid-svg-y7JgMdOCbkc2JIL4 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-y7JgMdOCbkc2JIL4 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .marker.cross{stroke:#333333;}#mermaid-svg-y7JgMdOCbkc2JIL4 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-y7JgMdOCbkc2JIL4 p{margin:0;}#mermaid-svg-y7JgMdOCbkc2JIL4 .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster-label text{fill:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster-label span{color:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster-label span p{background-color:transparent;}#mermaid-svg-y7JgMdOCbkc2JIL4 .label text,#mermaid-svg-y7JgMdOCbkc2JIL4 span{fill:#333;color:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .node rect,#mermaid-svg-y7JgMdOCbkc2JIL4 .node circle,#mermaid-svg-y7JgMdOCbkc2JIL4 .node ellipse,#mermaid-svg-y7JgMdOCbkc2JIL4 .node polygon,#mermaid-svg-y7JgMdOCbkc2JIL4 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .rough-node .label text,#mermaid-svg-y7JgMdOCbkc2JIL4 .node .label text,#mermaid-svg-y7JgMdOCbkc2JIL4 .image-shape .label,#mermaid-svg-y7JgMdOCbkc2JIL4 .icon-shape .label{text-anchor:middle;}#mermaid-svg-y7JgMdOCbkc2JIL4 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .rough-node .label,#mermaid-svg-y7JgMdOCbkc2JIL4 .node .label,#mermaid-svg-y7JgMdOCbkc2JIL4 .image-shape .label,#mermaid-svg-y7JgMdOCbkc2JIL4 .icon-shape .label{text-align:center;}#mermaid-svg-y7JgMdOCbkc2JIL4 .node.clickable{cursor:pointer;}#mermaid-svg-y7JgMdOCbkc2JIL4 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .arrowheadPath{fill:#333333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-y7JgMdOCbkc2JIL4 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-y7JgMdOCbkc2JIL4 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-y7JgMdOCbkc2JIL4 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster text{fill:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 .cluster span{color:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-y7JgMdOCbkc2JIL4 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-y7JgMdOCbkc2JIL4 rect.text{fill:none;stroke-width:0;}#mermaid-svg-y7JgMdOCbkc2JIL4 .icon-shape,#mermaid-svg-y7JgMdOCbkc2JIL4 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-y7JgMdOCbkc2JIL4 .icon-shape p,#mermaid-svg-y7JgMdOCbkc2JIL4 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-y7JgMdOCbkc2JIL4 .icon-shape .label rect,#mermaid-svg-y7JgMdOCbkc2JIL4 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-y7JgMdOCbkc2JIL4 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-y7JgMdOCbkc2JIL4 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-y7JgMdOCbkc2JIL4 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/span><\/span><\/p>\n

\u5426<\/p>\n

<\/span><\/p>\n

\u662f<\/p>\n

<\/span><\/span><\/span><\/p>\n

\u662f<\/p>\n

<\/span><\/p>\n

\u5426<\/p>\n

<\/span><\/span><\/span><\/p>\n

\u5bf9\u8bdd\/\u8bc4\u6d4b\/\u4e1a\u52a1\u4e8b\u4ef6<\/p>\n

<\/span><\/p>\n

\u751f\u6210\u5019\u9009\u8bb0\u5fc6<\/p>\n

<\/span><\/p>\n

\u5141\u8bb8\u4fdd\u5b58\u4e14\u5bf9\u672a\u6765\u6709\u7528？<\/p>\n

<\/span><\/p>\n

\u7559\u5728 thread \u6216\u4e22\u5f03<\/p>\n

<\/span><\/p>\n

\u6807\u6ce8\u4e8b\u5b9e\/\u504f\u597d\/\u63a8\u65ad<\/p>\n

<\/span><\/p>\n

\u6765\u6e90\u6821\u9a8c\u3001\u53bb\u91cd\u3001\u51b2\u7a81\u68c0\u67e5<\/p>\n

<\/span><\/p>\n

\u9700\u8981\u7528\u6237\u786e\u8ba4？<\/p>\n

<\/span><\/p>\n

\u7b49\u5f85\u786e\u8ba4<\/p>\n

<\/span><\/p>\n

\u6309\u89c4\u5219\u5199\u5165<\/p>\n

<\/span><\/p>\n

\u66f4\u65b0\u3001\u8fc7\u671f\u3001\u5220\u9664<\/p>\n

<\/span><\/p>\n

\u6211\u4f1a\u7ed9\u4e0d\u540c\u8bb0\u5fc6\u7c7b\u578b\u4e0d\u540c\u7b56\u7565：<\/p>\n

    \n
  • \u8fdb\u5ea6\u4e8b\u5b9e：\u53ea\u63a5\u53d7\u53d7\u4fe1\u4e8b\u4ef6，\u5141\u8bb8\u56de\u6eda；<\/li>\n
  • \u660e\u786e\u504f\u597d：\u7528\u6237\u4e3b\u52a8\u8868\u8fbe\u540e\u5199\u5165，\u652f\u6301\u968f\u65f6\u4fee\u6539；<\/li>\n
  • \u7cfb\u7edf\u63a8\u65ad：\u4fdd\u5b58\u8bc1\u636e\u3001\u4f4e\u6743\u91cd\u3001\u77ed TTL；<\/li>\n
  • \u654f\u611f\u4fe1\u606f：\u5199\u5165\u524d\u62e6\u622a；<\/li>\n
  • \u51b2\u7a81\u4e8b\u5b9e：\u4fdd\u7559\u65e7\u8bb0\u5f55\u4e3a superseded，\u4e0d\u9759\u9ed8\u8986\u76d6\u5ba1\u8ba1\u5386\u53f2\u3002<\/li>\n<\/ul>\n

    \u8bfb\u53d6\u4e5f\u8981\u6700\u5c0f\u5316<\/h3>\n

    Agent \u5f00\u59cb\u8fd0\u884c\u65f6\u4e0d\u5e94\u628a\u4e00\u4e2a\u7528\u6237\u7684\u5168\u90e8\u957f\u671f\u8bb0\u5fc6\u585e\u8fdb Prompt\u3002\u5148\u6839\u636e\u4efb\u52a1\u9009 namespace，\u518d\u6309 key\u3001\u65f6\u95f4\u548c\u76f8\u5173\u6027\u53d6\u6700\u5c11\u8bb0\u5f55\u3002\u6bd4\u5982\u56de\u7b54 Day 18 \u7684\u4e3b\u9898，\u53ea\u9700\u8bfb\u53d6\u5b66\u4e60\u8fdb\u5ea6\u548c\u6280\u672f\u6808；\u4e0d\u9700\u8981\u52a0\u8f7d\u5199\u4f5c\u98ce\u683c\u3001\u5386\u53f2\u9519\u8bef\u5168\u6587\u548c\u6240\u6709\u5bf9\u8bdd\u3002<\/p>\n

    \u8fd8\u8981\u9632\u6b62\u8de8\u7528\u6237\u4e0e\u8de8\u79df\u6237\u8bfb\u53d6\u3002namespace \u5fc5\u987b\u7531\u5df2\u8ba4\u8bc1 user_id \u6784\u9020，\u4e0d\u5141\u8bb8\u6a21\u578b\u5728\u5de5\u5177\u53c2\u6570\u4e2d\u81ea\u7531\u6307\u5b9a\u53e6\u4e00\u4e2a\u7528\u6237\u3002<\/p>\n

    \u957f\u671f\u8bb0\u5fc6\u7684\u5931\u8d25\u6a21\u5f0f<\/h3>\n
  • \u65e7\u504f\u597d\u8986\u76d6\u65b0\u660e\u786e\u8981\u6c42；<\/li>\n
  • \u4e00\u6b21\u968f\u53e3\u8868\u8fbe\u88ab\u6c38\u4e45\u4fdd\u5b58；<\/li>\n
  • \u6a21\u578b\u63a8\u65ad\u88ab\u5f53\u4f5c\u7528\u6237\u4e8b\u5b9e；<\/li>\n
  • \u5220\u9664 UI \u53ea\u9690\u85cf\u8bb0\u5f55，\u5e95\u5c42\u4ecd\u4f1a\u53ec\u56de；<\/li>\n
  • thread_id \u5f53\u6210 user_id，\u5bfc\u81f4\u65b0\u4f1a\u8bdd\u627e\u4e0d\u5230\u6216\u4e32\u9519\u8bb0\u5fc6；<\/li>\n
  • \u8bb0\u5fc6\u8fdb\u5165\u65e5\u5fd7\u540e\u65e0\u6cd5\u6309\u7528\u6237\u8bf7\u6c42\u6e05\u7406\u3002<\/li>\n

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