磁盘调度算法

说明：  磁盘调度算法 1。实现三种算法： 1。先来先服务 2。最短寻道优先（可自己假设当前磁头的位置） 3。电梯算法 2。磁道服务顺序从指定的文本文件（TXT文件）中取出 3。输出： 第一行：磁道的服务顺序 第二行：显示移动总道数
(a disk scheduling algorithms. Three algorithms to achieve : 1. First-come first-serve two. Seeking shortest priority (to be their head the assumption that the current location) 3. Elevator Algorithm 2. Track services from the designated order of the text document (TXT) out of three. Output : the first line : track the order of the second line services : Road show that the total number of mobile)