vc++小球弹射

vc++小球弹射#include#include#include#defineNULL0voids(inta,intb){setcolor(WHITE);line(a,b,a+10,b);line(a,b,a,b+10);line(a,b+10,a+10,b+10);line(a+10,b,a+10,b+10);Sleep(10);setcolor(BLACK);line(a,b,a+10,b);line(a,b,a,b+10);line(a,b+10,a+10,b+10);li