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
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
% y' [+ j5 R' S; J6 W0 c2.Edit the properties of the builder object to set the feature parameters and options.
( b8 j- a5 w' T  a- p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.
. q: X1 p' d3 |  t$ ~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
2 I1 _3 X# _- L3 h4.Use the Destroy method of the builder object to delete the builder object.
使用destory方法删除builder对象。
+ v+ \4 b0 n8 f, F( Q) {5 x编辑特征也是同样的操作过程！
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代码举例：
Session *NXSession = Session::GetSession();
7 b% l4 L( s& D. Q5 ?Part *workPart (NXSession->Parts()->Work());
Feature *nullFeature (NULL);
Point3d origin = new Point3d(0.0, 0.0, 0.0);
2 u# H, h# y/ Z$ M/ F1 z' W//**************************************************************************
: m1 W, q3 \6 y# i7 ^3 p//CREATE BLOCK 创建方块
0 c7 [  F& C2 w0 f$ x  e/ sBlockFeatureBuilder *newBlock = NULL;
newBlock = workPart->Features()->CreateBlockFeatureBuilder(nullFeature);
newBlock->SetOriginAndLengths(origin, "50", "80", "100");
Feature *blockFeature = newBlock->CommitFeature();
, w1 E2 @5 R% M$ N* `6 _: ]; SnewBlock->Destroy();
//**************************************************************************
- C6 z9 b2 Z8 M//EDIT BLOCK 编辑方块
. k4 G, I5 v, C' D2 ?$ ^BlockFeatureBuilder *oldBlock = workPart->Features()->CreateBlockFeatureBuilder(blockFeature);
oldBlock->SetOriginAndLengths(origin, "100", "20", "50");
oldBlock->CommitFeature();
oldBlock->Destroy();
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