小型内存分配模块,用通用循环双向链表实现，改程序模拟系统malloc-Small memory allocation module, two-way linked list with the realization of general circulation, to process simulation system malloc

电子电话簿的建立和删除，查询．有界面．但程序出现内存错误．希望各位高手帮我改一下．-Electronic Telephone Directory of the establishment and delete, query. Has interface. But the programs memory errors. I hope that you help me rephrase.