Thế macro em sai cho nào mà nó lại báo lỗi:uncaught
exception: index 24>=24 ah?

input $a;
if0 $a==1; then0; input $b;
if9 $b<0||$b>9; then9; showerror
loi!; stop; endif9;
if1 $b==1;then1:volupkey;
if2 $b==2;then2;volupkey;volupkey;
if3 $b==3;then3;volupkey;volupkey;volupkey;
menukey; keya; enterkey;