# 系统设计

- [DDD](/java/xi-tong-she-ji-3/ddd.md)
- [聊聊如何避免写流水账代码](/java/xi-tong-she-ji-3/ddd/ddd-di-wu-jiang-liao-liao-ru-he-bi-mian-xie-liu-shui-zhang-dai-ma.md)