我的最爱_C/C++

#include<graphics.h>
#include<math.h>
#define FNX(x1) (int)(x+(x1)*s)
#define FNY(y1)   (int)(MAXY-(y+y1*s))
#define R(theta)   1-cos(theta)
int s=50,MAXY;
float x1,y1,xs,ys,r,theta;
void draw(int x,int y)
{ for(theta=0;theta<=2*3.1415;theta+=0.01)
{ r=R(theta);
   x1=r*sin(theta);
   y1=r*cos(theta);
   xs=FNX(x1);
   ys=FNY(y1);
   if(theta==0)moveto(xs,ys);
   else lineto(xs,ys);
}
}
main()
{ int gdriver=DETECT,gmode,i;
    initgraph(&gdriver,&gmode,"");
    setbkcolor(4);
    setcolor(2);
    MAXY=getmaxy();
    draw(280,100);
    draw(370,100);
    floodfill(310,300,2);
    setlinestyle(0,0,3);
    for(i=0;i<=1;i++)
    for(theta=0;theta<=30;theta+=0.01)
    line(180+i,60,180+i+sin(theta)*6,495);
    for(i=0;i<9;i++)
   { setlinestyle(0,0,3);
      arc(160-5*i,100+50*i,0,150,20+5*i);
     }
     for(i=0;i<=4;i++)
     { setlinestyle(0,0,3);
       arc(190+5*i,100+45*i,360,125,20+5*i);
     }
     for(i=5;i<=9;i++)
     { setlinestyle(0,0,3);
       arc(180+5*i,100+45*i,360,125,20+5*i);
     }
     for(theta=0;theta<=30;theta+=0.01)
    line(510+i,60,510+i+sin(theta)*6,495);
    for(i=0;i<9;i++)
   { setlinestyle(0,0,3);
      arc(500-5*i,100+50*i,0,150,20+5*i);
     }
     for(i=0;i<=2;i++)
     { setlinestyle(0,0,3);
       arc(530+5*i,100+45*i,360,125,20+5*i);
     }
     for(i=3;i<=5;i++)
     { setlinestyle(0,0,3);
       arc(523+5*i,100+45*i,360,125,20+5*i);
     }
     for(i=6;i<=9;i++)
     { setlinestyle(0,0,3);
       arc(512+5*i,100+45*i,360,125,20+5*i);
     }
          getch();
    closegraph();
}