用keil 实现的基于stc12c5a16s2的一个51单片机的简易操作系统，可同时运行相互独立的带延时功能的多个任务。该设计占用一个定时器，占用0x7f~0xff的内存空间作为所运行任务的栈。

文件包括了整个工程所需要的全部文件，不过要正常运行，还需要对keil进行一些设置，主要是c与汇编混合的问题，可自己上网查询-Keil to achieve a 51-MCU-based stc12c5a16s2 simple operating system, which can run independent of each other more than one task with a delay function. The design occupies a timer, take up memory space 0x7f ~ 0xff as the stack of the running tasks. The documents include all the documents needed by the whole project, but to run properly, but also need some settings on keil c and assembly, can be online