#include <graphics.h>
#include<conio.h>
#include <math.h>
void main()
{
int i, j = 0, gdriver, gmode, points[20];
gdriver = DETECT;
initgraph(&gdriver, &gmode, ""); /*图形方式初始化*/
setcolor(YELLOW); /*设置绘图颜色*/
setlinestyle(0, 1); /*设置线形*/
for (i = 0; i < 5; i++)
{
points[j++] = (int)(320+150 * cos(0.4 *3.1415926 * i)); /*五角星外圈点的横坐标存入数组中*/
points[j++] = (int)(240-150 * sin(0.4 *3.1415926 * i)); /*五角星外圈点的纵坐标存入数组中*/
points[j++] = (int)(320+50 * cos(0.4 *3.1415926 * i + 0.6283)); /*五角星内圈点的横坐标存入数组中*/
points[j++] = (int)(240-50 * sin(0.4 *3.1415926 * i + 0.6283)); /*五角星内圈点的纵坐标存入数组中*/
}
setfillstyle(1, RED); /*设置填充方式*/
fillpoly(10, points); /*对五角星进行填充*/
getch();
closegraph(); /*退出图形状态*/
}