按钮监听的测试，显示学生信息，姓名,学号,成绩的录入与显示-Button listening test, display student information, name, school, grade entry and display

读取学生成绩，成绩为txt文件，用逗号隔开的，并可以对学生成绩做增删改查等数据库操作-Read the student performance, the results for the txt file, separated by a comma, and students can do the addition and deletion of operations such as