删除CTreeCtrl中某个节点的子节点

删除某个节点的子节点，下面提供两种方法：

void CFileView::DelAllChildOfItem(HTREEITEM hItem){BOOL bRet=FALSE;HTREEITEM hChildItem=NULL;while (TRUE){bRet= m_Tree.ItemHasChildren(hItem);if (!bRet)//没有孩子{break;} else{hChildItem=m_Tree.GetChildItem(hItem);m_Tree.DeleteItem(hChildItem);}}return;/*方法二：if (m_Tree.ItemHasChildren(hItem)){HTREEITEM hNextItem=NULL;HTREEITEM hChildItem=m_Tree.GetChildItem(hItem);while (hChildItem!=NULL){hNextItem=m_Tree.GetNextItem(hChildItem,TVGN_NEXT);m_Tree.DeleteItem(hChildItem);hChildItem=hNextItem;}}*/}