void __fastcall TForm1::GetRootNodes(TTreeView *DestTreeView)//得到所有根節(jié)點(diǎn)
{
        TTreeNode *vNode = NULL;
        vNode = DestTreeView->Items->GetFirstNode();
        while(vNode)
        {
                ShowMessage(vNode->Text);//處理查找到的根節(jié)點(diǎn)
                vNode = vNode->getNextSibling();
        }
}

//---------------------------------------------------------------------------
void __fastcall TForm1::GetChildNodes(TTreeNode *ANode) //根據(jù)某個(gè)節(jié)點(diǎn)得到所有的子節(jié)點(diǎn)
{
        TTreeNode *vNode;
        vNode=ANode->getFirstChild();
        while(vNode)
        {
                ShowMessage(vNode->Text);//處理查找到的子節(jié)點(diǎn)
                vNode=ANode->GetNextChild(vNode);
        }
}

void __fastcall TForm1::GetAllChildNodes(TTreeNode *ANode)//根據(jù)某個(gè)節(jié)點(diǎn)得到所有的子節(jié)點(diǎn)的遞歸處理過(guò)程
{
        TTreeNode *vNode;
        vNode=ANode->getFirstChild();
        while(vNode)
        {
                ShowMessage(vNode->Text);//處理查找到的子節(jié)點(diǎn)//先序訪問(wèn)
                GetAllChildNodes(vNode);//遞歸調(diào)用
                vNode=ANode->GetNextChild(vNode);
        }
}
void __fastcall TForm1::VisitAllNodes(TTreeView *ATreeView)//遞歸訪問(wèn)所有節(jié)點(diǎn)
{
        TTreeNode *vNode = NULL;
        vNode=ATreeView->Items->GetFirstNode();
        while(vNode)
        {
                ShowMessage(vNode->Text);//處理查找到的根節(jié)點(diǎn)
                GetAllChildNodes(vNode);
                vNode=vNode->getNextSibling();
        }
}