操作系统内存管理，1.随机生成2k-10k的文件50个，文件名为1.txt、2.txt、……、50.txt，按照上述算法存储到模拟磁盘中。-Operating system memory management, a randomly generated 2k-10k file 50, a file named 1.txt, 2.txt, ......, 50.txt, according to the above algorithm to simulate disk storage.