磁盘调度算法，有最短寻道时间优先调度算法和扫描算法 。-Disk scheduling, priority scheduling algorithm with the shortest seek time and scanning algorithms.

先服务FCFS，最短寻道时间优先SSTF，SCAN和循环SCAN算法的实现方法。-First-served FCFS, shortest seek time priority leaf Total Flavonoid the SCAN and circulation SCAN algorithm implementations.