> For the complete documentation index, see [llms.txt](https://ethan-lin.gitbook.io/refactoring/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ethan-lin.gitbook.io/refactoring/dan-wei-zhuan-huan/11-project-summary.md).

# 项目总结

在这个项目中，我们养成了在重构之前运行测试的习惯，学习了重构的十六字心法，具备了将重构手法拆解成 10 秒级粒度操作的能力，也掌握了一些常用的重构手法。

更重要的是，这种设计拆解步骤和频繁执行的能力，使我们远离了原始的、刀砍斧劈式的“重构”，而开始走进专业的、行为保持的重构技术的殿堂。

能够做到“**重构过程每改几行代码都能确保系统功能正常运行**”，是件了不起的事，也是一项需要不断打磨的技能。如果说从这节课程中你只能带走一个收获，那我希望就是这一个。它是所有重构操作的基础，希望在日后的每次重构中你都能记住，并且做到这一点。


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