圣三一

void DDALine(int x0,int y0,int xi,int yi,int color){int i;float dx,dy,length,x,y;if(fabs(xi-x0)>=fabs(yi-y0))length=fabs(xi-x0);elselength=fabs(yi-y0);dx=(xi-x0)/length;dy=(yi-y0)/length;...

//基于八对称点算法MidPointCircle(int r,int color){ int x,y; int e; x=0;y=r;e=1-r; CirclePoints(x,y,color); while(x<=y) { if(e<0) e+=2*x+3; else { e+=2*（x-y）+5; y--; } x++; CirclePoints(x,y,c...