You didn't give any information about what you're trying to do so I will have to throw some suggestions out there. EnemyA.count is the total number of EnemyA. You can set this to a global variable.
sorry
i want make various array "2 or 3" put inside in every array 5 or 7 enemy...
and want make a spawn point in every level... in every level i choose array whit enemy i want...
but a problem is... what i put after dot "."????
when i try to put enemy in array... he ask me something after a dot "."