画图，学用circle画圆形,定义的有头文件啊，怎么运行出的结果是 "no such file or diretory"
/*circle*/#include "graphics.h"
main()
{int driver,mode,i;
float j=1,k=1;
driver=VGA;mode=VGAHI;
initgraph(&driver,&mode,"");
setbkcolor(YELLOW);
for(i=0;i<=25;i++)
{
setcolor(8);
circle(310,250,k);
k=k+j;
j=j+0.3;
}
}
