用ellipse画椭圆

[c]代码库

#include "stdio.h"
#include "graphics.h"
#include "conio.h"
main()
{
	int x=360,y=160,driver=VGA,mode=VGAHI;
	int num=20,i;
	int top,bottom;
	initgraph ( &driver,&mode,"" );
	top=y-30;
	bottom=y-30;
	for ( i=0; i
{
	ellipse ( 250,250,0,360,top,bottom );
		top-=5;
		bottom+=5;
	}
	getch();
}