解释重奖

double baynumber = parval(2);
2 i8 L; f* \1 t, U6 m1 W; sint levelnum = getlabelnum(item,"floor")；
$ ?6 c/ D% {- V" i4 o- X; greturn max(1, min(rackgetnroflevels(current, baynumber), levelnum));