实现首次适应算法的动态分配过程alloc（）和回收过程setfree（）。其中，空闲分区通过空闲区说明表；在进行内存分配时，系统优先使用空闲区低端的空间。-Algorithm to achieve the first time to adapt to the dynamic allocation process alloc () and the recycling process setfree (). Among them, the idle through the free zone Zon

操作系统实验4 理解动态异常存储分区资源管理，掌握所需数据结构和管理程序，了解各种存储分配算法的优点和缺点。-Experiment 4 of the operating system to understand the dynamic abnormal storage partition resource management with the necessary data structures and management procedures, understand the advantag