可以在单片机中运行的操作系统，开发可以大大减少程序员对硬件的关注程度，且能实现多任务，能通过源代码学习到操作系统的简单原理-Can be run in single-chip microcomputer operating system, development can greatly reduce the concern of programmers on the hardware level, and can realize multi-task, through the operating