用C/C++编写一系统，实现学生信息管理，软件的入口界面应包括如下几个方面：

功能要求：

（1）信息维护：

要求：学生信息数据要以文件的形式保存，能实现学生信息数据的维护。此模块包括子模块有：增加学生信息、删除学生信息、修改学生信息

（2）信息查询：

要求：查询时可实现按姓名查询、按学号查询

（3）成绩统计：

要求：输入任意的一个课程名（如数学）和一个分数段（如60--70），统计出在此分数段的学生情况。

（4）排序：能对用户指定的任意课程名，按成绩升序或降序排列学生数据并显示排序结果。

-With C/C to prepare a system, and student information management, software interface should include the entrance the following aspects:

Functional requirements:

(1) information maintenance:

Requirements: Student Information data to the file is stored, to achieve the maintenance of student information and data. This module includes sub-modules are: to increase student information, student information delete, modify student information

(2) Information:

Requirements: Enquiries can be achieved when the query by name, by student number query

(3) performance statistics:

Requirements: Enter any name of a program (such as math) and a fractional segment (eg, 60- 70), the statistics of the students in the scores section of the situation.

(4) Sorting: Users can specify the name of any courses, ascending or descending order according to student performance data and displays the results.