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();
UF_ROUTE_ask_part_segs(part,&num_part_segs,&part_segs);
& B  U6 R- ?; j' e( _2 @ for (i=0;i<num_part_segs;i++)
, p3 h, K# N3 M) } {
   fail_code=UF_ROUTE_ask_characteristics(part_segs[i],UF_ROUTE_CHARX_TYPE_ANY,&charx_count,&list);
   UF_get_fail_message(fail_code,message);
# P$ P& q0 ^. w  U: ~    uc1601(message,1);
3 E0 \: ?& U1 F   length=fcvt(charx_count,0,&nDec,&nSign);
2 l+ Y3 T6 p7 p0 i7 F   fail_code=UF_UI_write_listing_window(length);
   UF_get_fail_message(fail_code,message);
6 `( Q* g3 K3 i+ o    uc1601(message,1);
    UF_UI_write_listing_window("\n");
. Y# T, p0 l2 b7 ^' j: o* P   UF_ROUTE_free_charx_array(charx_count,list);
}
3 i$ C$ J5 J: j* f除了空白窗口之外什么都没有显示，请大家指教