模拟出错，请教高手~~急

hln6610320

模拟时
! x2 c* s/ E- T* v+ q& v     obj.move(pos1);
; X; [0 B9 i# 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，
3 `; G/ @$ T/ _" }' H& l/ N. q, Wi : integer)
-- @ : waiting Target
7 J7 I( R; \# Y: o-- ? : TransferStation
is
! M7 A( ~& m: q" O6 f! n( q1 g) Xdo
if i = 1 then
" ]* c4 n- r/ a" k+ H7 a  -- before starting the transfer to the TransferStation
! b) b8 }8 g; X: q  -- parts/target are ready
0 E- D0 ~' C, D; d5 U elseif i = 2 then
% ?7 Y" E# C1 \  -- before parts leaving the TransferStation
& u% b; S6 a6 h; S end;
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？