说明：  用VxWorks的信号量机制实现任务同步.pdf ：为了保证诸任务对临界critical资源l eso~ 的互斥访问，VxWorks提供了任务同步机制。二进制信号量是VxWorks系统中实现任务同步的一种重要手段，它保证了任务在并发时结果的一致性。
(With VxWorks semaphore mechanism to realize the mission simultaneously. Pdf: in order to ensure that all mission critical resources on the critical l eso ~ of the mutex visit, VxWorks provides a synchronization mechanism mission. Binary semaphore system is VxWorks mission realize an important means of synchronization, which ensures that mission in complicated when the consistency of the results.)