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？
, P/ R- N3 ^  z% D Features::Feature *blockFeature;
  blockFeature=BlockFeatureBuilder1->CommitFeature();
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mildcat

& g' g# W# B( k& Y% O2 h
5 J' M6 B, }3 c0 e8 Tint UF_MODL_ask_feat_body
(
$ M/ q; Y1 Z, \* y$ @
: r% l2 \2 [2 u7 g( m; \$ h9 ytag_t feature_obj_id,
$ ]+ J% P3 ]  k& ctag_t * body_obj_id

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