??多道程序设计中，经常是若干个进程同时处于就绪状态，必须依照某种策略来决定那个进程优先占有处理机。因而引起进程调度。本实验模拟在单处理机情况下的处理机调度问题，加深对进程调度的理解。(Multi-channel programming, often at the same time a number of process ready state, a strategy must be determined in accordance with the process priority to occupy the processor. Process was caused by scheduling. The experimental simulation in the context of single processor scheduling problem, deepen the understanding of the process of scheduling.))