打开主程序,在主程序界面里有这些字符: P I F D S Q H .这些字符分别代表:显示所有同学的记录 插入一个新同学的记录 查找同学(按姓名查找) 删除一个同学的记录. 保存记录 退出 帮助

也就是进入主程序,出现这些字符.按相应的键实现不同的功能.

注:按 Q键时,也就是帮助.则出现如下信息:

P:Preview all students information

I: Insert new student information

F:Find a student

D:Delete a student

S:Save a student

Q:quit

H:Help-open the main program, the main program interface there are these characters : P I D S F Q H. These characters represent : show all the records of students inserted a new record of the students find classmates (search by name) a student of the deleted records. record-keeping help from entering the main program is that these characters. by the corresponding key to achieve different functions. Note : Bond with Q, it is to help. appeared as follows : P : Preview all students information I : Insert new student information F : Find a student D : Delete a student S : Save a student Q : quit H : Help