一个普通人，偶尔写代码、折腾系统，也把一些不想丢掉的旧事留在这里。
这个博客主要放技术笔记、题解、实验记录，以及一些与时间有关的碎片。
2025-07-12
关于About
Someone ordinary who writes code, tinkers with systems, and keeps a few old notes from disappearing.
This blog collects technical notes, problem writeups, experiments, and fragments worth remembering.