公司职员管理系统，可以实现增加职工信息，删除职工信息，查询职工信息，信息存储在本地服务器硬盘上，方便管理。运用C++流操作，纯虚类，虚函数，继承多态等等C++专业知识。-Staff management system, employee information can be added, deleted, staff information, check employee information, the information stored on the local server s hard drive for easy management. Using C++ stream operations, pure virtual class, virtual functions, inheritance polymorphism, etc. C++ expertise.