本例主要用于管理学生成绩，主要有五大功能模块：（1）输入记录模块主要完成将数据存入单链表中的工作。（2）查询记录模块主要完成在单链表中查找满足相关条件的学生记录。（3）更新记录模块，更新记录模块主要完成对学生记录的维护。（4）统计记录模块，完成对各门功课最高分和不及格人数的统计。（5）输出记录模块，主要完成两个任务，一，对学生记录的存盘工作，二，实现将单链表中存储的学生记录信息以表格的形式在屏幕上打印出来。-In this case primarily for the management of student achievement, there are five major functional modules: (1) input module records data into the main completion of the work of a single list. (2) query records in a single module to complete the main list to find the conditions to meet the relevant records of students. (3) module update records, update records of the main module to complete the maintenance of student records. (4) statistical records of modules, all subjects completed the highest number of points and not passing statistics. (5) record the output module, the main task of the completion of the two, one, save to record the work of students, two, the realization of the single-list student records stored in the form of information to form printed on the screen.