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标题: 问个NX OPEN for C++二次开发中Vector的问题： [打印本页]

作者: universewave 时间: 2007-7-3 10:36
标题: 问个NX OPEN for C++二次开发中Vector的问题：
先看看代码：
NXOpen::Features::FeatureCollection* f_collection = thePart->Features();
for (NXOpen::Features::FeatureCollection::iterator it=f_collection->begin();it != f_collection->end();it++)
{
      NXOpen::Features::Feature* f11= (NXOpen::Features::Feature* ) *it;
      std::vector<NXOpen::Features::Feature*> f_v;
      f_v=f11->GetChildren();
      if (f_v.size() > 0)
      {
         for (std::vector<NXOpen::Features::Feature*>::iterator it_sub=f_v.begin();
            it_sub!=f_v.end();it_sub++)
         {
            NXOpen::Features::Feature* f22= (NXOpen::Features::Feature* ) *it;
         }

      }
}
我的目的是想把getChildren()函数所返回的vector取出来，存在另一个声明的名为f_v的vector中。第一个for循环执行的没有大问题，为什么在赋值时以及使用vector的size等函数时就出错？提示说是Access Violation？
其中，getChildren的函数说明如下：

std::vector<NXOpen::Features::Feature *> NXOpen::Features::Feature::GetChildren  ( )

Returns the immediate child features.

问题是现在运行到 f_v=f11->GetChildren();
这一句时，就报错了，在Log里看到说是Access Violation
++++ Fatal system exception: c0000005 Access Violation
[ 1] 148817FD xutility\std::_Container_base::_Orphan_all Line 197 +0x3d (MSVCP80D)
[ 2] 14418F87 vector\std::vector<NXOpen::Features::Feature *,std::allocator<NXOpen::Features::Feature *> >::_Tidy Line 1092 +0x37 (Demo2)
[ 3] 14417921 vector\std::vector<NXOpen::Features::Feature *,std::allocator<NXOpen::Features::Feature *> >::~vector<NXOpen::Features::Feature *,std::allocator<NXOpen::Features::Feature *> > Line 547 +0x51

哪位大侠看看是啥问题啊？急！

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