共6个模块，分别用函数实现：

1、添加学生信息功能：可以一次完成若干条记录的输入。

2、修改学生信息功能： 按照姓名找到记录，并修改记录。

3、删除学生信息功能：按照姓名找到记录，并删除记录。

4、学生信息查询功能：完成按姓名或电话号码查找记录，并显示。

5、学生信息汇总功能：完成全部学生记录的显示。

6、排序功能：按姓名对所有记录进行排序。

-A total of 6 modules, respectively, with a function to achieve:

1, add student information function: you can complete a number of records of the input.

2, modify student information function: according to the name to find the record, and modify the record.

3, delete student information function: according to the name to find the record, and delete records.

4, student information query function: complete by name or phone number search records, and display.

5, student information summary function: to complete the display of all student records.

6, sorting function: the name of all records to sort.