模拟内存分配中的首次循环适应算法，用双向循环链表实现-Simulation of memory allocation in the first cycle adaptation algorithm

简单完成计算机的动态内存分配功能，利用链表结点存储内存，实现了最佳适应算法，最坏算法，首次适应算法，循环适应算法和紧凑算法。-Simply complete the function of the computer' s dynamic memory allocation, linked list of nodes using storage memory, to achieve the best fit algorithm, the worst algorithm, the first