说明：  1.分析UNIX最先适应（First Fit,FF）存储分配算法，即map数据结构、存储分配函数malloc()和存储释放函数mfree（），找出与算法有关的成分。 2.修改上述与算法有关的成分，使其分别体现BF（Best Fit,最佳适应）分配原则和WF(Worst Fit,最坏适应)分配原则。
(1. The first adaptation of UNIX (First Fit, FF) memory allocation algorithm, that is, map the data structure, storage allocation functions malloc () and memory release function mfree (), to identify the components and algorithms. 2. Modify the above related components and algorithms, it must show the BF (Best Fit, Best Fit) distribution and WF (Worst Fit, the worst adaptation) distribution.)