UserApp.cpp

Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create an inheritance hierarchy to represent various types of packages.

#include
#include
using namespace std;
class Shape
{
public :
	virtual void draw（）{
	cout<<“drow Shape!“<	}
};
class Point
{
public:
	double x;
	double y;
};
class Triangle:public Shape
{
public:
	Point a;
	Point b;
	Point c;
	void draw（）{
	cout<<“Triangle!“<	cout<<“（“<	cout<<“（“<	cout<<“（“<};
class Square:public Shape
{
public:
	Point v1;
	double width;
	void draw（）{
	cout<<“Square!“<	};
};
class Rectangle:public Shape
{
public:
	Point a;
	Point b;
	double width;
	double height;
	void draw（）{
	cout<<“Rectangle!“<	};
};
class Graphics:public Shape
{
public :
	vector shapes;
	void add（Shape *shape）{
		shapes.push_back（shape）;
	};
	void draw（）{
		for（int i=0;i		{
			Shape *shape=shapes[i];
			shape-