自己用C++编写的基于控制台的学生成绩管理系统，包括了很多C++的知识：类、向量、动态数组、菜单设计、相关度计算-Written in own use C++, console-based student performance management system, including the a C++ a lot of of the knowledge: class, vector, dynamic arrays, menu design, the related degrees calcu