使用C的CAPTCHA项目出错 [英] Error in CAPTCHA project using C

问题描述

想要在C语言上开发 CAPTCHA 项目。

但我收到错误：没有这样的文件或目录。

我正在使用GCC编译器。



错误图片： http://postimg.org/image/5ndmy0jk5/ [ ^ ]

Want to develop a CAPTCHA project on C language.
But i am getting an error: No such file or directory.
I am using GCC compiler.

Error Image: http://postimg.org/image/5ndmy0jk5/[^]

#include<stdlib.h>
#include<dos.h>
#include<graphics.h>
 
main()
{
   int i = 0, key, num, midx, gd = DETECT, gm;
   char a[10];
 
   initgraph(&gd,&gm,"C:\\TC\\NULL");
 
   midx = getmaxx()/2;
 
   settextstyle(SCRIPT_FONT,HORIZ_DIR,5);
   settextjustify(CENTER_TEXT,CENTER_TEXT);
   setcolor(GREEN);
   outtextxy(midx,20,"CAPTCHA");
   settextstyle(SCRIPT_FONT,HORIZ_DIR,2);
   outtextxy(midx,125,"Press any key to change the generated random code \"captcha\"");
   outtextxy(midx,150,"Press escape key to exit...");
 
   setcolor(WHITE);
   setviewport(100,200,600,400,1);
   setcolor(RED);
   randomize();
 
   while(1)
   {
      while(i<6)
      {
         num = random(3);
 
         if ( num == 0 )
            a[i] = 65 + random(26);     /* 65 is the ASCII value of A */
         else if ( num == 1)
            a[i] = 97 + random(26);     /* 97 is the ASCII value of a */
         else
            a[i] = 48 + random(10);     /* 48 is the ASCII value of 0 */
         i++;
      }
      a[i] = '\0';
      outtextxy(210,100,a);
      key = getch();
 
      if( key == 27 )                     /* escape key*/
         exit(0);
      clearviewport();
      i = 0;
   }
}

急需帮助...



谢谢....

Need urgent help...

Thanks....

推荐答案

正如您从错误消息中看到的那样，问题不在您的身上代码，但在编译环境的设置中。显然无法找到包含文件graphics.h。因此，请检查安装的目录结构。

As you can see from your error message, the problem is not in your code, but in the setup of your compilation environment. Obviously the include file graphics.h cannot be found. So check the directory structure of your installation.

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