利用文本编辑软件在外存上建立一个有n个学生的学号、姓名、系别、联系电话的数据文件。从键盘上输入一个学号，可以查寻到此人其他信息。并按姓名排序且输出。-Text editing software on a CRT is used to establish a n student s student id, name, department, contact phone number of the data file. From the keyboard input a student id, you can search to the person other information. And sort by name and output.