说明：  vxWorks6.4开发指导，对于学习和研究6.4版本操作系统的人，有很高的价值。包括任务管理，进程间通信，中断处理，网络通信等。
(vxWorks6.4 the development of guidance, study and research for the 6.4 version of the operating system people, there is a high value. Including task management, inter-process communication, interrupt handling, network communications.)