适合初学者实现数据共享和fifo传输，以便于多线程或者多进程之间数据共享-Suitable for beginners fifo data sharing and transfer, so that data shared between multiple threads or multiple processes

大学生计算机操作系统课程设计，实现页面置换，利用fifo（先进先出）算法-Students of computer operating systems curriculum design, the realization of the page replacement, the use of fifo (FIFO) algorithm