该系统要求实现一个简单、实用的通信录管理程序，主要功能包括通信录数据的录入、查找、修改、删除、排序、显示等。所有通信录数据都要利用文件系统保存，以备系统下次运行时使用。通过此课题，熟练掌握文件、数组、指针的各种操作，以及一些基本算法思想的应用。-The system required to achieve a simple, practical communication record management procedures, the main functions include address book data entry, search, modify, delete, sort, display and so on. All communications were recorded for the use of file system data should be saved to prepare for the next run-time use of the system. With this subject, master files, arrays, pointers to the various operations, as well as some idea of the application of the basic algorithm.