求助UF_ROUTE_ask_characteristics的用法

last_pupu

UF_ROUTE_ask_characteristics试了很久都用不起来
  UF_UI_open_listing_window();
& ~: C  Y5 M% W8 x6 Y3 v( W UF_ROUTE_ask_part_segs(part,&num_part_segs,&part_segs);
for (i=0;i<num_part_segs;i++)
{
/ [- A* r; [% @% ]. z; d   fail_code=UF_ROUTE_ask_characteristics(part_segs[i],UF_ROUTE_CHARX_TYPE_ANY,&charx_count,&list);
   UF_get_fail_message(fail_code,message);
. G3 P3 V4 J4 h: I% b    uc1601(message,1);
   length=fcvt(charx_count,0,&nDec,&nSign);
+ X; n, ]" \! s0 w; j$ p   fail_code=UF_UI_write_listing_window(length);
   UF_get_fail_message(fail_code,message);
2 G7 F  s9 k! ^" I8 U    uc1601(message,1);
% P4 `; ~* g; x8 t; e    UF_UI_write_listing_window("\n");
   UF_ROUTE_free_charx_array(charx_count,list);
4 U7 S, V" a( {. i  O( {7 w! T- e}
, M4 I$ `( \* d! ^除了空白窗口之外什么都没有显示，请大家指教