画出并填充一椭圆

[c]代码库

#include <graphics.h>
#include <conio.h>

int main ( void )
{
	int gdriver = DETECT, gmode;
	int xcenter, ycenter, i;

	initgraph ( &gdriver,&gmode,"" );
	xcenter = getmaxx() / 2;
	ycenter = getmaxy() / 2;

	for ( i=0; i<13; i++ )
	{
		setfillstyle ( i,WHITE );
		fillellipse ( xcenter,ycenter,100,50 );
		getch();
	}

	closegraph();
	return 0;
}