使用NXOpen C++创建和编辑特征的详细过程，一看就会！

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* g( M8 ~1 I8 k4 N  @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.
. L! N' B5 k) E8 N6 ]  {: N, j" [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.
编辑创建的builder，设置一些参数或者选项
5 J2 I$ }$ r* \, u- O9 f, 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
1 y" A9 I2 H9 B3 o# R  c4.Use the Destroy method of the builder object to delete the builder object.
使用destory方法删除builder对象。
. ?+ G$ l6 ^0 F8 {0 L! r编辑特征也是同样的操作过程！
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代码举例：
# Z/ O/ @. g) f0 |/ QSession *NXSession = Session::GetSession();
, v% s; A1 n9 H. e. FPart *workPart (NXSession->Parts()->Work());
" [: z. T8 j1 L4 r! o( r* q( x& l% PFeature *nullFeature (NULL);
6 d: Z; s& Z8 MPoint3d origin = new Point3d(0.0, 0.0, 0.0);
//**************************************************************************
//CREATE BLOCK 创建方块
9 [% v+ o  Z2 [" J* @  s  qBlockFeatureBuilder *newBlock = NULL;
newBlock = workPart->Features()->CreateBlockFeatureBuilder(nullFeature);
newBlock->SetOriginAndLengths(origin, "50", "80", "100");
# i0 X, a9 ]. P2 \, b; {+ i% kFeature *blockFeature = newBlock->CommitFeature();
# @& |$ d) `- \" x( l/ ]newBlock->Destroy();
//**************************************************************************
//EDIT BLOCK 编辑方块
( K+ k0 E- n9 G$ I) j! ~BlockFeatureBuilder *oldBlock = workPart->Features()->CreateBlockFeatureBuilder(blockFeature);
oldBlock->SetOriginAndLengths(origin, "100", "20", "50");
oldBlock->CommitFeature();
6 p; l# x0 z+ @- _. |- w( woldBlock->Destroy();