说明：  程序设计一般由两部分组成：算法和数据结构，合理地选择和实现一个数据结构和处理这些数据结构具有同样的重要性。在通讯录管理程序中，由于预计记录数相对于一个单位的学生人数或职工人数来说不会太大，除了能够增加、删除、保存等外，更多的情况时查询，且能够实现快速查询，所以选用静态数组保存数据，实现多种查询方式。
(Programming generally consists of two parts: algorithms and data structures, rational choice and a data structure and processing of these data structures are of equal importance. Contact management program, the expected number of records for a unit the number of students or the number of workers will not be much substandard addition to being able to add, delete, save, the more inquiries, and to achieve fast query , so use a static array to save the data to achieve a variety of ways to search.)