以一个小型公司的人员信息系统为例，用基类的指针数组来处理不同的派生类对象，从而实现拉多态性调用。使用动态数组类模板Array来代替C++预定义的数组类型。-to a small company personnel information system. use the base class pointer array to handle different types of derived objects, thereby realizing Rafah called polymorphism.