实现界面删除，查找，录入，修改学生成绩，并将操作过后的学生信息存储到文件中，可以独立运行，附源码，报告及分析过程。(To achieve the interface to delete, find, enter, modify student achievement, and after the operation of the student information stored in the file, you can run independently, with source code, reporting and analysis process.)