一个操作系统的可执行文件格式，从许多角度来看，都是操作系统内建行为的一面镜子。
虽然可执行档格式通常并不是一个程序员认为迫切需要学习的东西，但操作系统的许多
有用的知识却可以在这个过程中获得。动态联结、加载器行为、以及内存管理，是特
别容易在这个学习过程中推理而得的三个主题。,An operating system of the executable file format, from a number of point of view, are built into the operating system acts as a mirror. Although the executable file format is usually not a programmer that there was an urgent need to learn things, but the operating system a lot of useful knowledge can be gained in this process. Dynamic linking, loader behavior, and memory management, are particularly susceptible to the learning process in the reasoning of the above-mentioned three themes.