一个内存页面的LRU（最近最久未使用）替换算法演示，一个管道的多字节分时处理模拟。-A memory page of the LRU (Least Recently Used) replacement algorithm demo, and a pipeline of multi-byte time-sharing processing simulation.

实现OPT、FIFO、LRU、Clock等页面替换算法。接收用户输入参数，包括程序长度（页面数）、页框个数及页面大小，输出结果采用不同颜色区分命中、替换及直接加入空闲块。-Implementation of OPT, FIFO, LRU, Clock and other page replacement algorithm. Receive user input parameters, including the length of the program (page number), page