使用NXOpen C++创建和编辑特征的详细过程，一看就会！

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$ k5 E) }3 c8 R+ \- }Create a New Feature 创建NXfeature的标准过程
1.Create an instance of the builder object for the desired feature type providing a null object as input.
创建一个builder实例，null作为输入
  q: e/ b& e  b1 {6 Z2.Edit the properties of the builder object to set the feature parameters and options.
5 ?3 e3 a. q5 @+ G; J8 e编辑创建的builder，设置一些参数或者选项
, n+ n" c" q* F9 Y3 Y/ z3.Use the Commit method of the builder object to create an instance of the feature.  The Commit method will return the new feature object.
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
3 ]- K, _5 d% D) z6 w  o4 l8 r4.Use the Destroy method of the builder object to delete the builder object.
2 e( j: D! t! Z8 V) M! w2 A使用destory方法删除builder对象。
7 Q7 H1 Q7 U$ y5 M2 i编辑特征也是同样的操作过程！

代码举例：
0 F$ ]# q$ D: v  I1 eSession *NXSession = Session::GetSession();
3 T: f: i( o9 f4 v  S( A" ?Part *workPart (NXSession->Parts()->Work());
Feature *nullFeature (NULL);
/ S' P6 i) u! W; OPoint3d origin = new Point3d(0.0, 0.0, 0.0);
//**************************************************************************
& f( n" U" u- C( Y//CREATE BLOCK 创建方块
BlockFeatureBuilder *newBlock = NULL;
newBlock = workPart->Features()->CreateBlockFeatureBuilder(nullFeature);
newBlock->SetOriginAndLengths(origin, "50", "80", "100");
Feature *blockFeature = newBlock->CommitFeature();
/ t8 C1 D, z; c( O9 pnewBlock->Destroy();
7 D' h. m: q5 |4 z% d//**************************************************************************
+ Y9 x  a0 ]! n/ G- m2 ]" Q//EDIT BLOCK 编辑方块
BlockFeatureBuilder *oldBlock = workPart->Features()->CreateBlockFeatureBuilder(blockFeature);
, X6 _+ Y" T" k. BoldBlock->SetOriginAndLengths(origin, "100", "20", "50");
oldBlock->CommitFeature();
) K: K; @; S( E. YoldBlock->Destroy();
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