麻烦各位达人帮忙改正一个c＋＋画图程序

[daige2003]

#include<iostream.h>
#include<conio.h>
#include<graphics.h>
class Location
{
protected:
int X;
int Y;
public:
Location(int InitX,int InitY);
int GetX();
int GetY();
};

class Point: public Location
{
public:
Point(int InitX,int InitY);
void Show(int pixelcolor);
};

Location::Location(int InitX,int InitY)
{
X=InitX;
Y=InitY;
}

int Location::GetX(void)
{
return X;
}

int Location::GetY(void)
{
return Y;
}

Point::Point(int InitX,int InitY):Location(InitX,InitY)
{}

void Point::Show(int pixelcolor=15)
{
int j;
j=pixelcolor;
putpixel(X,Y,j);
}

void main()
{
int GraphDriver=DETECT,GraphMode;
Point b(40,20);
Point c(100,200);
initgraph(&GraphDriver,&GraphMode,"F:\\tc3.0\\BGI");
b.Show();
c.Show();
getch();
cout<<"GetX()="<<b.GetX()<<endl;
cout<<"GetY()="<<b.GetY()<<endl;
cout<<"GetX()="<<c.GetX()<<endl;
cout<<"GetY()="<<c.GetY()<<endl;
closegraph();
}

编译后的错误：
Linker Error: Undefined symbol _closegraph in module NONAME26.CPP
Linker Error: Undefined symbol _initgraph in module NONAME26.CPP
Linker Error: Undefined symbol _putpixel in module NONAME26.CPP

[fierygnu]

没有连接图形库。什么编译器？

[zhouqingyuan]

就是库的问题

[Andy84920]

#include<graphics.h>

有吗?

[lsAf]

要在编译器的编译环境里选中图形的库.例如bc3.1中的Options/Links/Library.

[daige2003]

tc3.0的目录为F:\tc3.0

Options/Directories
Include Directories
F:\TC3.0\INCLUDE

Library Directories
F:\TC3.0\LIB
能行吗

[daige2003]

tc3.0的目录为F:\tc3.0

Options/Directories
Include Directories
F:\TC3.0\INCLUDE

Library Directories
F:\TC3.0\LIB
能行吗

[hblinlin]

没有 #include<graphics.h>


好象是tc中有啊

[Icre81dr]

VC++

[panzhaoping]

妈的，vc不支持tc的那一套的
它没有 #include<graphics.h>