https://shio-chan-dev.github.io/jeanblog/zh/tags/%E5%B7%A5%E7%A8%8B%E5%AE%9E%E8%B7%B5/Recent content in 工程实践 on Jeanphilo BlogHugo -- 0.159.2zh-cnFri, 20 Mar 2026 14:44:10 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/skeleton-first-contract-driven-coding/Fri, 20 Mar 2026 14:44:10 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/skeleton-first-contract-driven-coding/把复杂程序拆成骨架、契约和原子状态变换：本文用 LRUCache、下单流程与反例解释为什么先写外部结构通常更稳，以及 helper 应该如何控制副作用。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/equivalence-migration-then-behavior-refactor-workflow/Thu, 05 Mar 2026 16:54:59 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/equivalence-migration-then-behavior-refactor-workflow/一套面向 AI 协作开发的双阶段工作流：先做行为等价迁移，再做行为改造，配合任务记账与 worktree 隔离，减少返工与回归。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/invariants-contract-before-implementation/Wed, 11 Feb 2026 07:53:37 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/invariants-contract-before-implementation/解释“先定不变量/契约，再写实现”到底在工程上多了什么，并给出可执行的落地模板。https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/00-graph-algorithms-learning-path/Mon, 09 Feb 2026 10:14:45 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/00-graph-algorithms-learning-path/图算法专题导航与推荐阅读顺序，覆盖 BFS/DFS、可达性、最短路、CC/SCC、中心性、PageRank、社区发现、子图匹配、动态图、图分区与图计算模型。https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/90-dynamic-graph-incremental-computation/Mon, 09 Feb 2026 10:00:28 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/90-dynamic-graph-incremental-computation/面向真实图系统，系统讲解动态图增量算法：增量最短路径、增量 PageRank、连通性维护。重点覆盖局部重算、延迟更新、近似结果三种工程必修技巧。https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/50-graph-centrality-degree-betweenness-closeness/Mon, 09 Feb 2026 09:56:11 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/50-graph-centrality-degree-betweenness-closeness/系统讲解图中心性三大指标：Degree、Betweenness、Closeness。重点给出工程可落地结论：大多数系统优先支持 Degree 和近似 Betweenness，并说明复杂度、近似策略与上线取舍。https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/20-shortest-path-bfs-dijkstra-astar-acers/Mon, 09 Feb 2026 09:48:00 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/algorithm/graph/20-shortest-path-bfs-dijkstra-astar-acers/系统讲透最短路径三件套：无权图 BFS、非负权 Dijkstra、启发式 A*。覆盖多源 BFS、双向搜索、路径裁剪等工程优化，并附可运行代码与多语言模板。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/ai-assisted-coding-responsibility-workflow/Sat, 07 Feb 2026 13:16:00 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/ai-assisted-coding-responsibility-workflow/用一套可执行的 commit 与分支流程，把 AI 变成加速器而不是黑盒来源。https://shio-chan-dev.github.io/jeanblog/zh/dev/language/when-to-use-functional-languages/Sat, 24 Jan 2026 15:42:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/language/when-to-use-functional-languages/讨论函数式语言的适用场景、优势与限制。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/java-stack-memory-leak/Sat, 24 Jan 2026 15:29:20 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/java-stack-memory-leak/通过经典栈实现示例解释 Java 的内存泄漏与修复方式。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/refactor-nested-error-codes/Sat, 24 Jan 2026 15:29:20 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/refactor-nested-error-codes/用早返回与小函数拆分重构深层嵌套错误处理。https://shio-chan-dev.github.io/jeanblog/zh/dev/design/design-vs-architecture/Sat, 24 Jan 2026 15:29:20 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/design/design-vs-architecture/从范围与抽象层级解释设计与架构的区别。https://shio-chan-dev.github.io/jeanblog/zh/dev/language/three-worst-flaws-python/Sat, 24 Jan 2026 15:29:20 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/language/three-worst-flaws-python/从工程角度分析 Python 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+0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/software-dev-art-craft-engineering/从工程管理视角讨论软件开发的本质与平衡。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/readable-code-principles/Sat, 24 Jan 2026 13:27:25 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/readable-code-principles/从结构、命名与认知负担角度定义“可读性强的代码”。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/reinventing-wheel-nih-dogfooding/Sat, 24 Jan 2026 13:27:25 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/reinventing-wheel-nih-dogfooding/讨论重复造轮子、非我发明症与狗粮文化的取舍。https://shio-chan-dev.github.io/jeanblog/zh/dev/language/good-vs-bad-language/Sat, 24 Jan 2026 13:08:42 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/language/good-vs-bad-language/从可读性、工具链与安全性出发，讨论语言优劣的工程标准。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/automate-your-workflow/Sat, 24 Jan 2026 12:53:37 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/automate-your-workflow/说明自动化对工程效率与质量的价值，并给出实践建议。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/greenfield-vs-brownfield/Sat, 24 Jan 2026 12:47:45 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/greenfield-vs-brownfield/对比新建项目与遗留系统的利弊，并给出选择与落地策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/legacy-code-management/Sat, 24 Jan 2026 12:47:45 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/legacy-code-management/给出处理遗留代码的工程策略，包括测试保护网与渐进式改造。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-software-maintenance-hard/Sat, 24 Jan 2026 12:47:45 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-software-maintenance-hard/分析软件维护困难的原因，并给出缓解策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-to-automate-next/Sat, 24 Jan 2026 12:45:38 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-to-automate-next/给出识别自动化机会的工程方法，包括频率、成本与风险维度。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/dependency-hell/Sat, 24 Jan 2026 12:45:38 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/dependency-hell/从版本冲突与传递依赖出发，给出依赖地狱的治理方法与工具策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/testing-in-design/Sat, 24 Jan 2026 12:42:52 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/testing-in-design/从可测试性出发解释测试如何影响设计决策，并给出可落地的结构建议。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/comments-in-code/Sat, 24 Jan 2026 12:42:52 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/comments-in-code/解释注释的价值与风险，并给出可执行的注释策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/tdd-tests-first/Sat, 24 Jan 2026 12:42:52 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/tdd-tests-first/解释 TDD 先写测试的原因，以及它如何改善设计与反馈速度。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/refactoring-when/Sat, 24 Jan 2026 12:42:52 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/refactoring-when/解释重构适用场景、触发信号与风险控制方法。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-is-good-code/Sat, 24 Jan 2026 12:33:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-is-good-code/从可读性、正确性与演进成本出发定义好代码，并给出可执行的判断清单。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-is-professional-developer/Sat, 24 Jan 2026 12:33:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/what-is-professional-developer/从责任心、质量意识与协作能力出发，定义专业开发者的标准与实践。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-large-companies-slow-innovation/Sat, 24 Jan 2026 12:33:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-large-companies-slow-innovation/分析大公司创新变慢的结构性原因，并给出工程层面的改进策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/security/implement-2fa-in-existing-web/Sat, 24 Jan 2026 12:33:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/security/implement-2fa-in-existing-web/给出在已有 Web 应用引入 2FA 的工程步骤、数据模型与回滚策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/architecture/vendor-lock-in/Sat, 24 Jan 2026 12:29:51 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/architecture/vendor-lock-in/给出防止供应商锁定的工程策略，包括抽象层、可迁移架构与数据可移植性。https://shio-chan-dev.github.io/jeanblog/zh/dev/database/mysql-to-postgresql-migration/Sat, 24 Jan 2026 12:23:30 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/database/mysql-to-postgresql-migration/给出 MySQL 迁移到 PostgreSQL 的工程化步骤、风险点与回滚策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/database/schema-migration/Sat, 24 Jan 2026 12:23:30 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/database/schema-migration/从灰度、回滚与数据一致性角度讲清数据库 schema 迁移的工程实践。https://shio-chan-dev.github.io/jeanblog/zh/dev/version-control/distributed-vs-centralized-vcs/Sat, 24 Jan 2026 11:20:31 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/version-control/distributed-vs-centralized-vcs/对比分布式版本控制（Git）与集中式版本控制（SVN）的优劣势，并给出选型建议。https://shio-chan-dev.github.io/jeanblog/zh/dev/security/why-not-roll-your-own-crypto/Sat, 24 Jan 2026 11:11:28 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/security/why-not-roll-your-own-crypto/解释自创密码学为何高风险，并给出工程上更安全的替代做法。https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-software-is-hard/Sat, 24 Jan 2026 11:06:00 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/engineering/why-software-is-hard/从需求变化、复杂性与协作成本出发解释软件开发的困难，并给出可落地的缓解策略。https://shio-chan-dev.github.io/jeanblog/zh/dev/python/pipeline-orchestration/Tue, 13 Jan 2026 00:00:00 +0000https://shio-chan-dev.github.io/jeanblog/zh/dev/python/pipeline-orchestration/用通俗语言解释“后端任务编排”的必要性：把流程顺序从前端移到后端，用配置驱动步骤与等待点。给出最小可运行示例、落地步骤与常见坑。https://shio-chan-dev.github.io/jeanblog/zh/thoughts/thoughts/algorithm-vs-business/Wed, 07 Jan 2026 00:00:00 +0000https://shio-chan-dev.github.io/jeanblog/zh/thoughts/thoughts/algorithm-vs-business/用投标写作系统为例，解释算法与业务的边界：算法负责把模糊世界压缩成结构化中间态，业务负责在中间态稳定后编排流程。附：JupyterLab 验证清单、最小可运行示例与常见坑。https://shio-chan-dev.github.io/jeanblog/zh/thoughts/thoughts/ai-usage-self-control/Mon, 08 Dec 2025 00:00:00 +0000https://shio-chan-dev.github.io/jeanblog/zh/thoughts/thoughts/ai-usage-self-control/讨论在使用 AI 辅助编码时如何避免复制粘贴依赖，结合费曼技巧、刻意练习与检索练习，给出可操作的自检清单与演练步骤。