Based on analyzing RTOS from function model, capability model etc, the realization is described about task scheduler based on preemption, the interrupt inhibit time and the event of interrupt waiting.

• 在从功能、性能模型等角度对实时操作系统进行分析的基础上，描述了抢占式任务调度和中断禁止时间与中断延迟事件的实现。