序列化学生的信息，并将其包含的信息读取到student文本文件中-serial the information of student,reading them ,and save the information in the text of student

有多种功能的学生成绩系统，将学生信息导入文本后，可执行对文件的读取、排序、查找、修改和对成绩系统安全设置的操作。(The student achievement system with many functions can import student information into text, and execute the operation of reading, sorting, finding, modifying, and setting up system security fo