请求页式虚存管理是常用的虚拟存储管理方案之一。通过请求页式虚存管理中对页面置换算法的模拟，有助于理解虚拟存储技术的特点，并加深对请求页式虚存管理的页面调度算法的理解。-Page request for virtual memory management is commonly used as one virtual storage management solutions. Page through the request of the management of virtual memory page replacement algorithm for the simulation, help to understand the characteristics of virtual storage technology and better understanding of the request for virtual memory management page type of page to understand the scheduling algorithm.