怎么通过Feature来获得body

牧马人

如我通过BlockFeatureBuildr创建了一个Block特征，怎么通过这个Feature来获得Body呢？
& O, Z1 F8 N  }! M! K Features::Feature *blockFeature;
  blockFeature=BlockFeatureBuilder1->CommitFeature();
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mildcat

4 a, l1 e* U9 a: M
int UF_MODL_ask_feat_body
(
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tag_t feature_obj_id,
( t" h1 p2 W) c0 _tag_t * body_obj_id
- z5 [# _( W# n
7 c$ p4 t) D2 C, m7 ]. v/ Q* u)