#include "stdlib.h"

#include"graphics.h"

main()

{

int gd=DETECT,gr,a[8],b[8],x,y,i,j,c

initgraph(&gd,&gr,"")

randomize()

for( !kbhit() )

{

x=rand() 500+100 /*随机中心坐标*/

y=rand() 300+100

a[0]=x /*各点坐标的计算,我的烟花图形没能是圆的*/-# Include " stdlib.h" # include " graphics.h"　main () {int gd = DETECT, gr, a [8], b [8], x, y, i, j, c　initgraph (&　gd, &　gr , " " )　randomize ()　for ( ! kbhit ()　) {x = rand ()　500+100　/* Random center coordinates*/y = rand ()　300+100　a [0] = x　/* calculate the coordinates of each point, I was not able to fireworks graphics is round* /