使用NXOpen C++创建和编辑特征的详细过程，一看就会！

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Create a New Feature 创建NXfeature的标准过程
  q/ Q; _; E2 C4 ]1.Create an instance of the builder object for the desired feature type providing a null object as input.
9 F* S8 s* \" A* U: M, h创建一个builder实例，null作为输入
2.Edit the properties of the builder object to set the feature parameters and options.
8 u  X! c, I; [! Y+ ]: f7 `+ h1 X' }编辑创建的builder，设置一些参数或者选项
3.Use the Commit method of the builder object to create an instance of the feature.  The Commit method will return the new feature object.
# u9 B* }2 w+ r# g' k# Y9 ]使用commit的方法来创建这个feature的实例，这样就可以返回一个feature对象
5 R- y  ^( }5 K' |" L  w$ h6 {( h4.Use the Destroy method of the builder object to delete the builder object.
使用destory方法删除builder对象。
; g9 C5 A! w, A% z. _, J/ g. Q编辑特征也是同样的操作过程！

代码举例：
Session *NXSession = Session::GetSession();
  K- p, b$ T: _; T5 k  v! mPart *workPart (NXSession->Parts()->Work());
Feature *nullFeature (NULL);
1 o" M9 M- ~- F: `+ dPoint3d origin = new Point3d(0.0, 0.0, 0.0);
//**************************************************************************
8 Y9 D% E- j1 I+ l. D. y# e, y//CREATE BLOCK 创建方块
) S. s4 V5 C) Q' f0 V# lBlockFeatureBuilder *newBlock = NULL;
newBlock = workPart->Features()->CreateBlockFeatureBuilder(nullFeature);
newBlock->SetOriginAndLengths(origin, "50", "80", "100");
Feature *blockFeature = newBlock->CommitFeature();
newBlock->Destroy();
& H0 j* T0 L; w$ N% b) l2 M; x) F# g9 P//**************************************************************************
, \& D9 s3 I( l4 ^  G//EDIT BLOCK 编辑方块
6 E: P- c4 {5 NBlockFeatureBuilder *oldBlock = workPart->Features()->CreateBlockFeatureBuilder(blockFeature);
; Z' o# C1 Q. i/ p  B3 T* ToldBlock->SetOriginAndLengths(origin, "100", "20", "50");
oldBlock->CommitFeature();
+ j' b  ]: s6 Z2 b& D9 foldBlock->Destroy();
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