单列多服务台排队系统需求分析 用户在系统主界面输入服务台数、顾客总数、仿真时间、等初始数据，经过后台系统处理相关数据并进行分析计算，得出顾客排队的最大队长、平均队长、系统中平均实体数、顾客平均等待时间、顾客最大等待时间、服务台的空期和忙期各占百分比以及每个顾客在系统中花费的时间等等。-Single multi-server queuing system requirements analysis the main user interface to enter in the system h

Many applications require that we process records with keys in order, but not necessarily in full sorted order. Often we collect a set of items and process the one with the current minimum value. e.g. jobs sent to a printer, Operating system j