使用QT编写了简单的学生管理系统，本程序运用了链表机制来实验的，功能不完善，可以作为初学者学习的资料，代码做了比较详细地注释。-The use of QT students prepared a simple management system, procedures for the use of a linked list of this mechanism to experiment, functional imperfect, can be used as a beginner to le