模拟出错，请教高手~~急

hln6610320

模拟时
     obj.move(pos1);
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，
i : integer)
0 J$ i; P9 m* e" s* X7 J. S-- @ : waiting Target
-- ? : TransferStation
1 D' \# M& J; L$ c; mis
: H+ g* Z& J, _5 h1 }% z& rdo
if i = 1 then
2 k$ h; R4 c9 J" D  -- before starting the transfer to the TransferStation
  -- parts/target are ready
elseif i = 2 then
  -- before parts leaving the TransferStation
end;
( H  _8 L3 R9 T* i& z6 Fend;
% |" `6 _6 J" R: U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？