双缓冲区誊抄的程序，使用信号灯及共享缓冲区实现同步，由三个子进程实现-Double buffer copy of the transcr ipt, the use of semaphores and shared buffer to achieve synchronization, by the three sub-processes realize

Linux下模拟并发程序的执行实例，几个程序的誊抄过程，了解进程之间的调度关系。-Simulation of concurrent programming under Linux implementation example, several procedures to copy a transcr ipt of the process of understanding the process of relations between the scheduling.

Demonstrates the using a list view in transcr ipt mode.