通过文件写入读取到程序中，在线考试完成后再将学生的成绩存入一个文件中，该系统提供老师和学生两个菜单，老师可以查看修改统计成绩，学生可以在线考试和进行程序查询。-By reading the file is written into the program, and then complete the online exam student achievement will be deposited in a file, the system offers two menus teachers and students, the teacher can view the modified statistical results, students can conduct online examinations and procedures inquiry .