棱形

程序如下！
#include "graphics.h"
#include "stdio.h"
main()
{   int driver=DETECT,mode;
    int x,y,i,k,a=100,b=5;
    
    initgraph(&driver,&mode,"");
    x=y=a;
    for(i=0;i<66;i++)
    {   setcolor(i++);
        setbkcolor(0);
        box(x,y);
        circle(310,200,100+k*i);
        settextstyle(1,0,10);
        outtextxy(270,200,"feng  zheng");/*汉字怎么插入啊*/
        
        x+=b;
        y-=b;
        
        delay(2000000000);
        delay(2000000000);
        delay(2000000000);
        delay(2000000000);
        
        
       cleardevice();
    }
}
int box(int x,int y)
{
 line(310,200-y,310-x,200);
 line(310-x,200,310,200+y);
 line(310,200+y,310+x,200);
 line(310+x,200,310,200-y);
}