多道批处理系统两级调度的模拟，实现一个的多道批处理系统的两级调度。通过具体的作业调度、进程调度、内存分配等功能的实现，加深对多道批处理系统的两级调度模型和实现过程的理解。 -Many way batch system simulation of two level scheduling, realize a multi-channel batch system of the two levels of scheduling. Through the specific job scheduling, process scheduling, the realization of the function of memory allocation, deepen our understanding of the word more batch system two level of scheduling model and realization process of understanding.