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();
2 t& V  d" G/ Y3 [ UF_ROUTE_ask_part_segs(part,&num_part_segs,&part_segs);
, s2 {0 ~. P6 X0 ]( b. U5 v# q) O for (i=0;i<num_part_segs;i++)
{
   fail_code=UF_ROUTE_ask_characteristics(part_segs[i],UF_ROUTE_CHARX_TYPE_ANY,&charx_count,&list);
. q) J$ s; J3 h( u* w   UF_get_fail_message(fail_code,message);
    uc1601(message,1);
   length=fcvt(charx_count,0,&nDec,&nSign);
( r3 w6 D- i: e& ?: H   fail_code=UF_UI_write_listing_window(length);
   UF_get_fail_message(fail_code,message);
    uc1601(message,1);
    UF_UI_write_listing_window("\n");
   UF_ROUTE_free_charx_array(charx_count,list);
0 o) e! c  }. @- N}
. B! J; k# r. R( U5 n: h' H除了空白窗口之外什么都没有显示，请大家指教