C++实验 多态性与虚函数

#include<iostream> #include"Body.h" #include"Circle.h" #include"Plane.h" #include"Point.h" #include"Rectangle.h" #include"Triangle.h" using namespace std; int main() { float r;//圆柱的地面半径 float cir_h;//圆柱的高 float len;//四棱柱的地面长 float wid; //四棱柱的地面宽 float qua_h;//四棱柱的高 cout << "输入圆柱的半径: "; cin >> r; cout << "输入圆柱的高: "; cin >> cir_h; Plane* circle = new Circle(r); Body* cylinder = new Body(circle, cir_h); cout << "圆柱的体积为: " << cylinder->volume() << endl; cout << "圆柱的表面积为: " << cylinder->surfaceArea() << endl; cout << endl; cout << "输入四棱柱地面的长: "; cin >> len; cout << "输入四棱柱地面的宽: "; cin >> wid; cout << "输入四棱柱的高: "; cin >> qua_h; Plane* rectangle = new Rectangle(len, wid); Body* quadrangular = new Body(rectangle, qua_h); cout << "四棱柱的体积为: " << quadrangular->volume() << endl; cout << "四棱柱的表面积为: " << quadrangular->surfaceArea() << endl; cout << endl; /* * 计算三棱柱体积和表面积 */ float Xa, Ya, Xb, Yb, Xc, Yc, tri_h; Point A, B, C; cout << "输入三棱柱底面顶点A的<x y>坐标: "; cin >> Xa >> Ya; A.x = Xa; A.y = Ya; cout << "输入三棱柱底面顶点B的<x y>坐标: "; cin >> Xb >> Yb; B.x = Xb; B.y = Yb; cout << "输入三棱柱底面顶点C的<x y>坐标: "; cin >> Xc >> Yc; C.x = Xc; C.y = Yc; cout << "输入三棱柱的高: "; cin >> tri_h; Plane* triangle = new Triangle(A, B, C); Body* triangular = new Body(triangle, tri_h); cout << "三棱柱的体积为: " << triangular->volume() << endl; cout << "三棱柱的表面积为: " << triangular->surfaceArea() << endl; return 0; }