模拟出错，请教高手~~急

hln6610320

模拟时
3 o$ y6 d) |" D     obj.move(pos1);
" C+ ]  l5 b7 g, ~+ V* _, @3 t这句老出错，但不知错在哪 ，请教高手~~~
8 a4 o% f% D+ a1 w* ^  ?  ~还有就是装卸站transferstation 的methods初始程序看不懂，
+ Y' e2 n' C7 M# B; Ji : integer)
$ n( }; t' }& J1 u2 y-- @ : waiting Target
8 G+ _( o5 u  ^3 Y-- ? : TransferStation
$ k! {0 E1 \0 c. G$ H- V1 q7 l4 tis
do
if i = 1 then
- |% Z9 F; D' y; A, Q  -- before starting the transfer to the TransferStation
9 U0 O4 m( f/ m" Y" c9 p  -- parts/target are ready
elseif i = 2 then
  -- before parts leaving the TransferStation
. X+ n6 M; w/ r& K% P end;
end;
4 I4 w# k* l' g5 Y' g如果要设置有条件的卸载，当物件属性integer满足一定数量条件时卸载，应该如何编写？