这个程序最后应该如何正确输出……

/*main.cpp*/]

#include<iostream>

#include<vector>

#include<algorithm>

#include"CShap.h"

#include"Compare.h"

using namespace std;

vector<CShap *> pShapes;

int main()

{

	int i, n;

	CRectangle* pr;

	CCricle* pc;

	CTriangle *pt;

	cout << "Please enter the number of geometry: " << endl;

	cin >> n;

	for (i = 0; i < n; i++){

		char c;

		cout << "Please enter the sharp you want to calculate:" << endl << "(R:Rectangle T:Triangle C:Cricle)" << endl;

		cin >> c;

		switch (c){

		case 'R':

			pr = new CRectangle();

			cout << "Please enter the width and high: " << endl;

			cin >> pr->width >> pr->high;

			pShapes.push_back(pr);

			break;

		case 'T':

			pt = new CTriangle();

			cout << "Please enter sides: " << endl;

			cin >> pt->a >> pt->b >> pt->c;

			pShapes.push_back(pt);

			break;

		case 'C':

			pc = new CCricle();

			cout << "Please enter radius: " << endl;

			cin >> pc->r;

			pShapes.push_back(pc);

			break;

		}

	}

	sort(pShapes.begin(), pShapes.end(),Compare);

	vector<CShap *>::iterator it;

	for (it = pShapes.begin(); it != pShapes.end(); it++){

		*it;

	}

	system("pause");

	return 0;

}

/*CShap.h*/

#include<iostream>

#include<math.h>

using std::cout;

using std::endl;

class CShap{

public:

	virtual double Area() = 0;

	virtual void PrintInfo() = 0;

};

class CRectangle :public CShap{

public:

	double width, high;

	virtual double Area();

	virtual void PrintInfo();

};

class CCricle :public CShap{

public:

	double r;

	virtual double Area();

	virtual void PrintInfo();

};

class CTriangle :public CShap{

public:

	double a, b, c;

	virtual double Area();

	virtual void PrintInfo();

};

double CRectangle :: Area(){

	return width*high;

}

void CRectangle::PrintInfo(){

	cout << "Rectangle: " << Area() << endl;

}

double CCricle::Area(){

	double pi = 3.141592653;

	return pi*r*r;

}

void CCricle::PrintInfo(){

	cout << "Cricle: " << Area() << endl;

}

double CTriangle ::Area(){

	double p = (a + b + c) / 2.0;

	return sqrt(p*(p - a)*(p - b)*(p - c));

}

void CTriangle::PrintInfo(){

	cout << "Triangle: " << Area() << endl;

}

/*Compare.cpp*/

#include"CShap.h"

bool Compare(const void*s1, const void*s2)

{

	double a1, a2;

	CShap**p1;  

	CShap**p2;

	p1 = (CShap**)s1;  

	p2 = (CShap**)s2;  

	a1 = (*p1)->Area();  

	a2 = (*p2)->Area();

	if (a1 < a2){

		return 1;

	}

	else{

		return 0;

	}

}

/*CShap.h*/

#ifndef CShap_h

#define CShap_h

#include<iostream>

#include<math.h>

using std::cout;

using std::endl;

class CShap{

public:

	virtual double Area() = 0;

	virtual void PrintInfo() = 0;

};

class CRectangle :public CShap{

public:

	double width, high;

	virtual double Area();

	virtual void PrintInfo();

};

class CCricle :public CShap{

public:

	double r;

	virtual double Area();

	virtual void PrintInfo();

};

class CTriangle :public CShap{

public:

	double a, b, c;

	virtual double Area();

	virtual void PrintInfo();

};

#endif

/*Compare.h*/

#ifndef Compare_h

#define Compare_h

#include"CShap.h"

bool Compare(const void*s1, const void*s2);

#endif