这是我自己在linux下写的c程序，在linux下可用gcc可编译运行。程序功能是学生信息管理，有三种用户，管理员，教师，学生。管理员可对教师学生进行添加和删除，教师可对学生进行删除和添加。学生只能查看教师信息和添加学生信息。使用数据结构的循环双链表进行数据管理。数据存储于文件一边下次访问。访问许要密码和用户名登陆。开始时可用管理员aaa密码aaa登陆。有三个数据存储文件，请不要删除，不然会报错找不到文件的。程序属于初学练手之作，有很多缺点，望包涵。但是c语言初学者还是值得看看的。里面还是有一些结构化思想的。-This is my own to write in linux c program, available under the linux gcc compiler can run. Program features a student information management, there are three users, administrators, teachers, students. Administrators can add and delete student teachers, teachers can delete and add the students. Students can view the teacher information and add student information. Use double-linked list data structure for data management cycle. Data is stored in the file while the next visit. Visit promised to password and user name login. Available beginning administrator password aaa aaa landing. There are three data storage file, do not delete, or will be error file not found. Programs are beginner practicing hand to make, there are many shortcomings, looking bear. But the c language for beginners is still worth a look at. There are still some structural ideas.