模拟出错，请教高手~~急

hln6610320

模拟时
& _3 Z4 k! x4 ^6 B2 W) g, d/ c     obj.move(pos1);
& {% ^0 J8 g. Z1 y9 ?6 V! F9 z这句老出错，但不知错在哪 ，请教高手~~~
2 c2 Z5 B' D9 \还有就是装卸站transferstation 的methods初始程序看不懂，
i : integer)
* R7 X% v+ D( m/ }; E# V# o) Q/ u-- @ : waiting Target
-- ? : TransferStation
is
do
if i = 1 then
( K0 M2 s* l' L' F  c  -- before starting the transfer to the TransferStation
  -- parts/target are ready
, R0 t: X) _$ D, F& H: I9 |; U elseif i = 2 then
, h# k2 G2 P8 b6 I6 _  -- before parts leaving the TransferStation
: c' @& o: F1 a7 B end;
. A( A- ~2 ^, N6 O+ }end;
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？