多任务并行处理两路跑马灯,基于switch状态机思想，领略到了它的简单和精髓， 以后任何所谓复杂的工程项目，都不再复杂-Multi-task parallel processing two marquees, based on switch state machine thought, a taste of its simplicity and essence, after any so-called complex engineering project, are no longer comp