在制图环境中导入的视图不能删除

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. P8 E7 `  U1 G* }% S. d% M在制图环境中导入的视图不能删除

  Session *mySession=Session::GetSession();
Part *workPart=mySession->Parts()->Work();
/ ~! s( D) o. O) i5 W% C; ? //导入俯视图
7 N6 b7 W% x! W" |4 e+ v Drawings::BaseView *nullDrawings_BaseView(NULL);
Drawings::BaseViewBuilder *baseViewBuilder1;
baseViewBuilder1 = workPart->DraftingViews()->CreateBaseViewBuilder(nullDrawings_BaseView);
ModelingView *theModelingView(dynamic_cast<ModelingView *>(workPart->ModelingViews()->FindObject("Top")));

Point3d viewOrigin(200,200,0);
& w  g% x' M0 |' d baseViewBuilder1->SelectModelView()->SetSelectedView(theModelingView);
8 T- y" q4 O) u$ y baseViewBuilder1->Style()->ViewStyleBase()->SetPart(workPart);
baseViewBuilder1->Style()->ViewStyleBase()->SetPartName(workPart->FullPath());
baseViewBuilder1->Placement()->Placement()->SetValue(NULL,workPart->ModelingViews()->WorkView(),viewOrigin);
baseViewBuilder1->Commit();