根据请求调页存储管理方式的相关原理，编程模拟实现一个请求调页存储管理系统，该系统的页面置换算法必须包括先进先出页面淘汰算法（FIFO）、最近最少使用LRU页面淘汰算法和最佳淘汰算法。同时系统可以随意设置当前分配给作业的物理块数。

系统运行时，任意输入一个页面访问序列，设定不同的页面置换算法和物理块数，输出其页面淘汰的情况，计算其缺页次数和页面置换次数。

系统结束后，要求比较同一个页面访问序列，在不同的页面置换算法和物理块数的情况下，其产生的缺页次数和页面置换次数，并分析其原因

-Paging, on request of the related storage management principle, the realization of a programmable analog paging request storage management system, the system s page replacement algorithm must include the page-out algorithm FIFO (FIFO), least recently used LRU algorithm for page-out and the most Jia-out algorithm. At the same time, the current system settings can be allocated to the operation of the physical block number.

Run-time system, a page arbitrarily input sequence set different page replacement algorithms and a number of physical blocks, the output of the circumstances out of its pages to calculate the number of missing pages and the number of page replacement.

System after the request for comparison with the sequence of a page, the page in different physical block replacement algorithm and the number of cases, the resulting lack of page number and the number of page replacement, and analysis of its causes