本篇文章将以开发中的 pyos 系统引导程序为例，pyos 是一个正在开发中的实验型操作

系统，它并不打算以目前任何一种运行中的操作系统为模式，而只想通过自己编写一个从头

到尾的操作系统来学习知识，积累技术-This article will guide the development process in the case pyos system, pyos is being developed in the experimental operating system, it does not intend to present any kind of operating system running as a model, but just through their own writing an operating system from start to finish to learn knowledge, accumulation of technological