C图形库错误 [英] C Graphics Library Error

问题描述

我有以下代码：

  #include< stdio.h> 
＃include< conio.h> 
＃include< math.h> 
＃include< graphics.h> 
 void main（）
 {
 int gd = DETECT，gm; 
 int dx，dy，p，end; 
 float x1，x2，y1，y2，x，y; 
 initgraph（& gd，& gm，）; 
 printf（\\\
输入x1的值：）; 
 scanf（％f，& x1）; 
 printf（\\\
输入y1的值：）; 
 scanf（％f，& y1）; 
 printf（\\\
输入x2的值：）; 
 scanf（％f，& x2）; 
 printf（\\\
输入y2的值：）; 
 scanf（％f，& y2）; 
 dx = abs（x1-x2）; 
 dy = abs（y2-y1）; 
 p = 2 * dy-dx; 
 
 if（x1> x2）
 {
 x = x2; 
 y = y2; 
 end = x1; 
} 
 else 
 {
 x = x1; 
 y = y1; 
 end = x2; 
} 
 putpixel（x，y，10）; 
 while（x  {
 x = x + 1; 
 if（p <0）
 {
 p = p + 2 * dy; 
} 
 else 
 {
 y = y + 1; 
 p = p + 2 *（dy-dx）; 
} 
 putpixel（x，y，10）; 
} 
 getch（）; 
 closegraph（）; 
} 
  

该代码主要用于创建一条线。但是当我运行这个程序时，我在控制台（我使用的是Ubuntu 10.04版本）中收到错误消息：
$ b test.c：2 ：致命错误：conio.h：没有这样的文件或目录
编译终止。
test.c：2：致命错误：graphics.h：没有这样的文件或目录
编译已终止。

这是否意味着我必须添加一些lib到C路径？

预先感谢。

解决方案

conio.h 和图形。 h 是古老的非标准接口，来自Borland环境，我猜想。

I have the following code :

#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>
void main()
{
    int gd=DETECT,gm;
    int dx,dy,p,end;
    float x1,x2,y1,y2,x,y;
    initgraph(&gd,&gm,"");
    printf("\nEnter the value of x1: ");
    scanf("%f",&x1);
    printf("\nEnter the value of y1: ");
    scanf("%f",&y1);
    printf("\nEnter the value of x2: ");
    scanf("%f",&x2);
    printf("\nEnter the value of y2: ");
    scanf("%f",&y2);
    dx=abs(x1-x2);
    dy=abs(y2-y1);
    p=2*dy-dx;

    if(x1>x2)
    {
        x=x2;
        y=y2;
        end=x1;
    }
    else
    {
        x=x1;
        y=y1;
        end=x2;
    }
    putpixel(x,y,10);
    while(x<end)
    {
        x=x+1;
        if(p<0)
        {
            p=p+2*dy;
        }
        else
        {
            y=y+1;
            p=p+2*(dy-dx);
        }
        putpixel(x,y,10);
    }
    getch();
    closegraph();
}

The code is mainly for creating a line. But when I run this program I get error message in my console(I'm using Ubuntu 10.04 version) as :

test.c:2: fatal error: conio.h: No such file or directory compilation terminated. test.c:2: fatal error: graphics.h: No such file or directory compilation terminated.

Is that mean I have to add some lib to C path?

Thanks in advance.

解决方案

conio.h and graphics.h are ancient, non-standard interfaces that came from Borland environments I suppose.

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