内存是中央处理机能直接存取指令和数据的存储器。能否合理而有效的使用内存，在很大程度上将影响到整个计算机系统的性能。本实验实现内存空间的分配与回收 。-Memory is a function of direct access to central processing instruction and data memory. Whether a reasonable and effective use of memory, to a large extent will affect the performance of the entire computer system. Experimental realization of the memory space allocation and recycling.