https://shio-chan-dev.github.io/jeanblog/zh/tags/%E5%BC%80%E9%97%AD%E5%8E%9F%E5%88%99/Recent content in 开闭原则 on Jeanphilo BlogHugo -- 0.159.2zh-cnSat, 24 Jan 2026 15:42:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/design-patterns/replace-switch-with-polymorphism/Sat, 24 Jan 2026 15:42:47 +0800https://shio-chan-dev.github.io/jeanblog/zh/dev/design-patterns/replace-switch-with-polymorphism/通过策略模式消除 switch 语句，降低分支扩展成本。