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)
-- @ : waiting Target
  X1 _: }( W  p# r9 G  O: f3 N-- ? : TransferStation
is
# a( p1 u' h# y- \" j$ Pdo
8 _  F! O4 s5 b, A4 m; d6 n& } if i = 1 then
  -- before starting the transfer to the TransferStation
  -- parts/target are ready
! u+ N  u8 B1 u6 [6 f3 V elseif i = 2 then
  -- before parts leaving the TransferStation
end;
end;
) `7 E/ T& {; r+ Y+ E/ r- z# k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？