一个人的技术博客与产品记事 — 写技术，造产品。https://hellomeng.com/zh-CNhttps://hellomeng.com/blog/large-model-understanding-language/https://hellomeng.com/blog/large-model-understanding-language/很多人觉得大模型像魔法，但其实背后的原理并不神秘。从最基础的词向量讲起，一步步拆解 Transformer 架构的核心思想。Sun, 15 Mar 2026 00:00:00 GMTAI 科普https://hellomeng.com/blog/solo-product-first-year/https://hellomeng.com/blog/solo-product-first-year/没有团队、没有融资，一个后端程序员如何从零开始做出一款 iOS App 并成功上架？记录那些只有自己做了才知道的事。Sat, 28 Feb 2026 00:00:00 GMT独立开发https://hellomeng.com/blog/ai-agent-workflow/https://hellomeng.com/blog/ai-agent-workflow/AI Agent 不只是概念炒作。我用它把每天重复的信息整理、内容生成、数据分析串联起来，实际效率提升了 3 倍。Tue, 10 Feb 2026 00:00:00 GMT技术实践https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E6%9C%AF%E8%AF%AD%E8%A1%A8/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E6%9C%AF%E8%AF%AD%E8%A1%A8/一个现代 Python 项目管理工具，可以负责创建项目、安装依赖、管理虚拟环境和锁定依赖版本。Mon, 13 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1附录https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%B8%B8%E8%A7%81%E6%8A%A5%E9%94%99%E6%8E%92%E6%9F%A5/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%B8%B8%E8%A7%81%E6%8A%A5%E9%94%99%E6%8E%92%E6%9F%A5/请求数据和接口定义的 Pydantic 模型不匹配。Sun, 12 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1附录https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%91%BD%E4%BB%A4%E9%80%9F%E6%9F%A5%E8%A1%A8/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%91%BD%E4%BB%A4%E9%80%9F%E6%9F%A5%E8%A1%A8/使用 Python 读取时，通常会在代码中调用：Sat, 11 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1附录https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%8F%82%E8%80%83%E8%B5%84%E6%BA%90%E7%B4%A2%E5%BC%95/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/08-%E9%99%84%E5%BD%95/%E5%8F%82%E8%80%83%E8%B5%84%E6%BA%90%E7%B4%A2%E5%BC%95/用于学习项目初始化、依赖安装和虚拟环境管理。 重点看 asyncio、typing、testing 相关专题。 重点看 models、field、validation。Fri, 10 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1附录https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/assets/readme/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/assets/readme/本目录用于存放研发助手项目相关的架构图导出、录屏截图或示意图。Thu, 09 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手课程资源https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/05-%E9%A1%B9%E7%9B%AE%E9%AA%8C%E6%94%B6%E4%B8%8E%E5%BD%95%E5%B1%8F%E8%84%9A%E6%9C%AC/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/05-%E9%A1%B9%E7%9B%AE%E9%AA%8C%E6%94%B6%E4%B8%8E%E5%BD%95%E5%B1%8F%E8%84%9A%E6%9C%AC/本文件用于帮助你完成月份 1 项目的最终验收与展示。Wed, 08 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/04-%E6%97%A5%E5%BF%97-%E6%88%90%E6%9C%AC-readme%E5%AE%8C%E5%96%84/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/04-%E6%97%A5%E5%BF%97-%E6%88%90%E6%9C%AC-readme%E5%AE%8C%E5%96%84/月份 1 不要求你做专业计费系统，但至少要能回答：Tue, 07 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/03-fastapi%E5%85%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/03-fastapi%E5%85%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/但前提是这些接口仍然调用同一套核心 service。Mon, 06 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/02-cli%E5%85%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/02-cli%E5%85%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/月份 1 用 CLI 可以快速验证核心服务是否合理。Sun, 05 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/01-%E9%A1%B9%E7%9B%AE%E9%9C%80%E6%B1%82%E4%B8%8E%E6%9E%B6%E6%9E%84/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/07-%E7%BB%BC%E5%90%88%E9%A1%B9%E7%9B%AE-%E7%A0%94%E5%8F%91%E5%8A%A9%E6%89%8B/01-%E9%A1%B9%E7%9B%AE%E9%9C%80%E6%B1%82%E4%B8%8E%E6%9E%B6%E6%9E%84/本月只做以下 3 个核心功能中的 1-2 个即可：Sat, 04 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1综合项目：研发助手https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/%E7%BA%AFapi%E5%AF%B9%E7%85%A7%E9%87%8D%E6%9E%84%E5%AE%9E%E9%AA%8C/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/%E7%BA%AFapi%E5%AF%B9%E7%85%A7%E9%87%8D%E6%9E%84%E5%AE%9E%E9%AA%8C/本实验的目标不是证明 LangChain “一定更好”，而是训练你做客观比较：Fri, 03 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1LangChain 核心抽象入门https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/03-outputparser%E4%B8%8Etool%E5%B0%81%E8%A3%85/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/03-outputparser%E4%B8%8Etool%E5%B0%81%E8%A3%85/LangChain 的 OutputParser 是把这类解析步骤抽象成单独组件。Thu, 02 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1LangChain 核心抽象入门https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/02-prompttemplate-runnable-lcel/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/02-prompttemplate-runnable-lcel/它的作用是把原本手工拼接的 Prompt 变成模板。Wed, 01 Oct 2025 00:00:00 GMTAI 应用开发课程月份 1LangChain 核心抽象入门https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/01-%E4%B8%BA%E4%BB%80%E4%B9%88%E5%85%88%E5%AD%A6langchain%E5%86%8D%E5%AD%A6langgraph/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/06-langchain%E6%A0%B8%E5%BF%83%E6%8A%BD%E8%B1%A1%E5%85%A5%E9%97%A8/01-%E4%B8%BA%E4%BB%80%E4%B9%88%E5%85%88%E5%AD%A6langchain%E5%86%8D%E5%AD%A6langgraph/如果此时直接跳进 LangGraph，很容易变成：Tue, 30 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LangChain 核心抽象入门https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/api%E9%AA%8C%E6%94%B6%E6%B8%85%E5%8D%95/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/api%E9%AA%8C%E6%94%B6%E6%B8%85%E5%8D%95/建议不要只在章节最后看一次，而是在做月份 1 第 3 周和第 4 周项目时反复对照：Mon, 29 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1FastAPI 服务化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/04-%E6%B5%81%E5%BC%8F%E5%93%8D%E5%BA%94%E4%B8%8E%E6%8E%A5%E5%8F%A3%E6%B5%8B%E8%AF%95/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/04-%E6%B5%81%E5%BC%8F%E5%93%8D%E5%BA%94%E4%B8%8E%E6%8E%A5%E5%8F%A3%E6%B5%8B%E8%AF%95/因为月份 1 前面你已经学过模型流式输出，这一节要把它变成服务能力。Sun, 28 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1FastAPI 服务化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/03-chat%E4%B8%8Etools%E6%8E%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/03-chat%E4%B8%8Etools%E6%8E%A5%E5%8F%A3%E5%AE%9E%E7%8E%B0/因为第 4 周的 CLI 入口会直接复用 ChatService 和 ToolService。如果你现在把逻辑写死在 FastAPI 路由里，后面一定要重构。Sat, 27 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1FastAPI 服务化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/02-%E8%AF%B7%E6%B1%82%E5%93%8D%E5%BA%94%E6%A8%A1%E5%9E%8B%E8%AE%BE%E8%AE%A1/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/02-%E8%AF%B7%E6%B1%82%E5%93%8D%E5%BA%94%E6%A8%A1%E5%9E%8B%E8%AE%BE%E8%AE%A1/所以你的请求响应模型必须围绕这 3 个接口收束，不要过度设计。Fri, 26 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1FastAPI 服务化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/01-fastapi%E6%9C%80%E5%B0%8F%E6%9C%8D%E5%8A%A1/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/05-fastapi%E6%9C%8D%E5%8A%A1%E5%8C%96%E5%9F%BA%E7%A1%80/01-fastapi%E6%9C%80%E5%B0%8F%E6%9C%8D%E5%8A%A1/因为 AI 应用最终很少只是脚本。你迟早会面对这些需求：Thu, 25 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1FastAPI 服务化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/%E5%B7%A5%E5%85%B7%E5%AE%9E%E9%AA%8C%E4%B8%8E%E9%AA%8C%E6%94%B6/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/%E5%B7%A5%E5%85%B7%E5%AE%9E%E9%AA%8C%E4%B8%8E%E9%AA%8C%E6%94%B6/本文件用于汇总 Tool Calling 模块的实验要求和最终验收标准。Wed, 24 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Tool Calling 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/03-%E9%94%99%E8%AF%AF%E5%A4%84%E7%90%86%E4%B8%8E%E9%87%8D%E8%AF%95/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/03-%E9%94%99%E8%AF%AF%E5%A4%84%E7%90%86%E4%B8%8E%E9%87%8D%E8%AF%95/月份 1 的目标不是消灭所有失败，而是让失败清楚、可定位、可恢复。Tue, 23 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Tool Calling 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/02-%E5%B7%A5%E5%85%B7%E5%BE%AA%E7%8E%AF%E5%AE%9E%E7%8E%B0/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/02-%E5%B7%A5%E5%85%B7%E5%BE%AA%E7%8E%AF%E5%AE%9E%E7%8E%B0/否则以后 CLI、FastAPI、LangChain 都很难复用。Mon, 22 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Tool Calling 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/01-toolcalling%E5%8E%9F%E7%90%86/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/04-tool_calling%E5%9F%BA%E7%A1%80/01-toolcalling%E5%8E%9F%E7%90%86/Tool Calling 的价值在于：让模型决定“该用哪个工具、传什么参数”，再由程序真正执行。Sun, 21 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Tool Calling 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/05-prompt%E5%AE%9E%E9%AA%8C%E6%89%8B%E5%86%8C/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/05-prompt%E5%AE%9E%E9%AA%8C%E6%89%8B%E5%86%8C/Prompt 学习不能停留在“记概念”。你必须像做实验一样记录：Sat, 20 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LLM API 与 Prompt 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/04-%E6%B5%81%E5%BC%8F%E8%BE%93%E5%87%BA%E4%B8%8E%E6%88%90%E6%9C%AC%E7%BB%9F%E8%AE%A1/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/04-%E6%B5%81%E5%BC%8F%E8%BE%93%E5%87%BA%E4%B8%8E%E6%88%90%E6%9C%AC%E7%BB%9F%E8%AE%A1/不同 SDK 或兼容接口的流式细节会有差异，但课程中的抽象目标固定为：Fri, 19 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LLM API 与 Prompt 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/03-%E7%BB%93%E6%9E%84%E5%8C%96%E8%BE%93%E5%87%BA%E4%B8%8Ejson-schema/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/03-%E7%BB%93%E6%9E%84%E5%8C%96%E8%BE%93%E5%87%BA%E4%B8%8Ejson-schema/自由文本适合阅读，但不适合程序继续处理。你后面会经常需要模型返回：Thu, 18 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LLM API 与 Prompt 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/02-%E6%B6%88%E6%81%AF%E7%BB%93%E6%9E%84%E4%B8%8E%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/02-%E6%B6%88%E6%81%AF%E7%BB%93%E6%9E%84%E4%B8%8E%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86/大多数聊天类 LLM API 都把输入组织为消息列表：Wed, 17 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LLM API 与 Prompt 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/01-llm%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5%E4%B8%8Edeepseek%E6%8E%A5%E5%85%A5/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/03-llm_api%E4%B8%8Eprompt%E5%9F%BA%E7%A1%80/01-llm%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5%E4%B8%8Edeepseek%E6%8E%A5%E5%85%A5/最核心的是 messages。它不是单纯的一句话，而是一组对话消息。Tue, 16 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1LLM API 与 Prompt 基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/%E5%B7%A5%E7%A8%8B%E6%A8%A1%E6%9D%BF%E8%AF%B4%E6%98%8E/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/%E5%B7%A5%E7%A8%8B%E6%A8%A1%E6%9D%BF%E8%AF%B4%E6%98%8E/本模板用于统一月份 1 各练习项目的工程结构，避免你在每个项目里重新思考目录设计。Mon, 15 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 工程化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/04-pytest%E4%B8%8E%E6%9C%80%E5%B0%8F%E6%B5%8B%E8%AF%95/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/04-pytest%E4%B8%8E%E6%9C%80%E5%B0%8F%E6%B5%8B%E8%AF%95/月份 1 中很多逻辑其实不依赖模型随机性，可以稳定测试：Sun, 14 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 工程化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/03-pydantic%E4%B8%8E%E9%85%8D%E7%BD%AE%E5%BB%BA%E6%A8%A1/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/03-pydantic%E4%B8%8E%E9%85%8D%E7%BD%AE%E5%BB%BA%E6%A8%A1/Pydantic 是月份 1 的关键桥梁，因为它连接了：Sat, 13 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 工程化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/02-ruff%E6%97%A5%E5%BF%97env%E9%85%8D%E7%BD%AE/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/02-ruff%E6%97%A5%E5%BF%97env%E9%85%8D%E7%BD%AE/在月份 1，你不需要复杂日志系统，但需要最小可读日志。Fri, 12 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 工程化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/01-uv%E4%B8%8E%E9%A1%B9%E7%9B%AE%E5%88%9D%E5%A7%8B%E5%8C%96/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/02-python%E5%B7%A5%E7%A8%8B%E5%8C%96%E5%9F%BA%E7%A1%80/01-uv%E4%B8%8E%E9%A1%B9%E7%9B%AE%E5%88%9D%E5%A7%8B%E5%8C%96/对初学者来说，这比混用 pip、venv、requirements.txt、poetry 更容易保持稳定。Thu, 11 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 工程化基础https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/%E7%BB%83%E4%B9%A0%E4%B8%8E%E7%AD%94%E6%A1%88%E6%A8%A1%E6%9D%BF/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/%E7%BB%83%E4%B9%A0%E4%B8%8E%E7%AD%94%E6%A1%88%E6%A8%A1%E6%9D%BF/本文件不是标准答案合集，而是练习记录模板。你应当在自己的学习过程中，把每一题的：Wed, 10 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/05-asyncio%E5%9F%BA%E7%A1%80/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/05-asyncio%E5%9F%BA%E7%A1%80/这些都属于 I/O 等待。异步能让程序在等待时更有效地安排执行。Tue, 09 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/04-%E5%BC%82%E5%B8%B8-%E6%96%87%E4%BB%B6-json/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/04-%E5%BC%82%E5%B8%B8-%E6%96%87%E4%BB%B6-json/如果你不会做异常处理，代码通常会在最脆弱的位置直接崩掉。Mon, 08 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/03-%E7%B1%BB-%E6%95%B0%E6%8D%AE%E7%B1%BB-%E7%B1%BB%E5%9E%8B%E6%B3%A8%E8%A7%A3/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/03-%E7%B1%BB-%E6%95%B0%E6%8D%AE%E7%B1%BB-%E7%B1%BB%E5%9E%8B%E6%B3%A8%E8%A7%A3/它们本质上都是“有结构的数据”。如果你不会用类或数据类，就很难把这些对象组织清楚。Sun, 07 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/02-%E5%87%BD%E6%95%B0-%E6%A8%A1%E5%9D%97-%E5%8C%85/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/02-%E5%87%BD%E6%95%B0-%E6%A8%A1%E5%9D%97-%E5%8C%85/初学时，把所有代码写进一个 main.py 很常见。但只要你开始做下面这些事，单文件就会失控：Sat, 06 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/01-python%E6%9C%80%E5%B0%8F%E5%85%A5%E9%97%A8/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/01-python%E8%AF%AD%E8%A8%80%E8%A1%A5%E4%BD%8D/01-python%E6%9C%80%E5%B0%8F%E5%85%A5%E9%97%A8/如果你有 Java、Go、JavaScript、C# 等语言经验，可以这样理解 Python：Fri, 05 Sep 2025 00:00:00 GMTAI 应用开发课程月份 1Python 语言补位https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/00-%E8%AF%BE%E7%A8%8B%E6%80%BB%E7%BA%B2%E4%B8%8E%E5%AD%A6%E4%B9%A0%E8%AF%B4%E6%98%8E/assets/readme/https://hellomeng.com/blog/ai-course/01-%E5%9F%BA%E7%A1%80%E8%83%BD%E5%8A%9B-%E6%9C%88%E4%BB%BD1/00-%E8%AF%BE%E7%A8%8B%E6%80%BB%E7%BA%B2%E4%B8%8E%E5%AD%A6%E4%B9%A0%E8%AF%B4%E6%98%8E/assets/readme/本目录用于存放月份 1 导航层相关的截图、流程图导出文件或补充图片。Thu, 04 Sep 2025 00:00:00 GMTAI 应用开发课程月份 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