随机访问二进制数据文件(有5个学生的数据,要求(1)把它们存到磁盘文件中(2)将磁盘文件中的第1,3,5个学生的数据读入程序,并显示出来(3)将第3个学生数据修改后存回磁盘文件中的原来位置(4)从磁盘文件 读入修改后的5个学生数据并显示出来)-Random access binary data files (there are five students in the data requirements (1) save them to disk file (2) The first 1,3,5 disk file the data read into the student program, and displayed ( 3) the first three students in the modified data back to disk files stored in the original position (4) read from the disk file of five students in the revised data shown)