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#include /*ͼÐκ¯Êý¿âÍ·ÎļþÉùÃ÷*/ void circlePoint(int x,int y)

{ putpixel(200+x,200+y,RED) ; putpixel(200+y,200+x, RED) ; putpixel(200-y,200+x, RED);putpixel(200-x,200+y, RED); putpixel(200-x,200-y, RED);putpixel(200-y,200-x, RED); putpixel(200+y,200-x, RED);putpixel(200+x,200-y, RED); }

void MidBresenhamcircle(int r) { int x,y,d;

x=0;y=r;d=1-r; while(x

{ circlePoint(x,y); if(d<0) d+=2*x+3;

else{ d+=2*(x-y)+5;y--;} x++; } }

void main()

2008-12-24

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{ int gdriver,gmode;

detectgraph(&gdriver,&gmode);

initgraph(&gdriver,&gmode,\ MidBresenhamcircle(100); getch();

closegraph(); }

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