采用c++语言编写，主要是求圆形和矩形的面积和体积，里面涉及了类的继承和虚函数的重载，其他还编写了求面积函数和输出函数，最后运用到主函数里面。-

Using c++ language, mainly of circular and rectangular area and volume, which involves a heavy-duty class inheritance and virtual functions, the other also prepared a request area and output functions, and finally applied to the main function inside.