细节之处要注意。

void addNodes(NodeContainer * sourceNodeContainer, NodeContainer targetNodeContainer,int startIndex,int count)    {        for(int i=0;i<count;i++)        {            sourceNodeContainer->Add(targetNodeContainer.Get(i+startIndex));        }    }

void addNodes(NodeContainer * sourceNodeContainer, NodeContainer targetNodeContainer,int startIndex,int count)//注意startIndex和count的含义    {        for(int i=startIndex;i<count;i++)        {            sourceNodeContainer->Add(targetNodeContainer.Get(i));        }    }