说明：  模拟动态分区存储管理方式的主存分配与回收。具体包括: （1）确定主存空间分配表（空闲分区、已分配分区）； （2）采用一种分配处理发（BF、WF、或FF等）完成主存空间分配和回收； （3）编写主函数对所有工作进行测试。
(Simulate dynamic partition management for main memory storage allocation and recovery. These include: (1) to determine the main memory space allocation table (free partitions, partitions have been assigned) (2) using a distribution deal with Fat (BF, WF, or FF, etc.) complete the main memory space allocation and recycling (3) write all the main functions of the test.)