老師，我的代碼和你的一樣，編譯通不過啊，求解答

Coordinate.h

class Coordinate

{

public:

Coordinate();

~Coordinate();

void setX(int x);

int getX();

void setY(int y);

int getY();

private:

int m_iX;

int m_iY;

};

Coordinate.cpp

#include <iostream>

#include "Coordinate.h"

using namespace std;

Coordinate::Coordinate()

{

cout<<"Coordinate"<<endl;

}

Coordinate::~Coordinate()

{

cout<<"~Coordinate"<<endl;

}

void Coordinate::setX(int x)

{

m_iX = x;

}

int Coordinate::getX()

{

return m_iX;

}

void Coordinate::setY(int y)

{

m_iY = y;

}

int Coordinate::getY()

{

return m_iY;

}

Line.h

#include "Coordinate.h"

class Line

{

public:

Line();

~Line();

void setA(int x,int y);

void setB(int x,int y);

void printInfo();

private:

Coordinate m_coorA;

Coordinate m_coorB;

};

Line.cpp

#include <iostream>

#include "Line.h"

#include "Coordinate.h"

using namespace std;

Line::Line()

{

cout<<"Line()"<<endl;

}

Line::~Line()

{

cout<<"~Line()"<<endl;

}

void Line::setA(int x,int y)

{

m_coorA.setX(x);

m_coorA.setY(y);

}

void Line::setB(int x,int y)

{

m_coorB.setX(x);

m_coorB.setY(y);

}

void Line::printInfo()

{

cout<<"("<<m_coorA.getX()<<","<<m_coorA.getY()<<","<<endl;

cout<<"("<<m_coorB.getX()<<","<<m_coorB.getY()<<","<<endl;

}

demo.cpp

#include <iostream>

#include <stdlib.h>

#include "Line.h"

using namespace std;

int main(void)

{

Line *p = new Line();

delete p;

p=NULL;

system("pause");

return 0;

}