模拟出错，请教高手~~急

hln6610320

模拟时
; S4 {- L1 Z7 Q  M     obj.move(pos1);
6 n4 ^% Z  s' _% t4 E4 N* \这句老出错，但不知错在哪 ，请教高手~~~
还有就是装卸站transferstation 的methods初始程序看不懂，
( m- L' \6 b. Ti : integer)
- B& D* t7 s2 i2 e/ `1 z( \-- @ : waiting Target
-- ? : TransferStation
8 k: [" ?8 b' D* E4 n6 `is
do
if i = 1 then
/ c+ u. o6 k9 O( U" Y$ w  -- before starting the transfer to the TransferStation
  -- parts/target are ready
elseif i = 2 then
' l7 L" \* x( b! j# v8 T  -- before parts leaving the TransferStation
end;
end;
  _! e5 ~8 u( d& y9 {/ ^; k9 i, A1 J$ H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？