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
( S/ M- m1 V8 Z# `1.Create an instance of the builder object for the desired feature type providing a null object as input.
% ~4 f$ P% V: X# \# ?0 L创建一个builder实例，null作为输入
$ \0 J3 A* Z( o: R4 L" w* {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
/ w  U3 J2 w5 \2 n& D( T) z! v3.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 O. l. M4 V9 N' H- n/ d% @+ Q4.Use the Destroy method of the builder object to delete the builder object.
# I1 e  k  Y, `* |, [4 |使用destory方法删除builder对象。
: Q$ M$ |8 w) p3 o+ F' _编辑特征也是同样的操作过程！
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代码举例：
( v8 X% ]5 N' Y$ R# C+ b, lSession *NXSession = Session::GetSession();
Part *workPart (NXSession->Parts()->Work());
Feature *nullFeature (NULL);
Point3d origin = new Point3d(0.0, 0.0, 0.0);
2 o! z8 x' l  t0 w3 q. }//**************************************************************************
//CREATE BLOCK 创建方块
1 K$ ]1 Z& s4 y! U! m9 }; }  S) SBlockFeatureBuilder *newBlock = NULL;
newBlock = workPart->Features()->CreateBlockFeatureBuilder(nullFeature);
newBlock->SetOriginAndLengths(origin, "50", "80", "100");
( M2 q7 o% ~. Y& n8 K' Q2 l, U- Z9 WFeature *blockFeature = newBlock->CommitFeature();
6 d5 w$ I+ w9 o/ V' ~newBlock->Destroy();
( q2 o  R/ E+ y3 n* [" \2 j//**************************************************************************
7 z! U8 y  O/ f5 C3 W//EDIT BLOCK 编辑方块
  l. N" H8 }" r! Y4 QBlockFeatureBuilder *oldBlock = workPart->Features()->CreateBlockFeatureBuilder(blockFeature);
/ C* @$ Z; V+ s' t, K; holdBlock->SetOriginAndLengths(origin, "100", "20", "50");
oldBlock->CommitFeature();
' k5 d+ Q$ T' LoldBlock->Destroy();
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