c12p658.txt

来自「Data Abstraction & Problem Solving with 」· 文本 代码 · 共 9 行

class TreeNode
{ 
private:
   TreeItemType smallItem, largeItem;
   TreeNode *leftChildPtr, *midChildPtr, *rightChildPtr; 

   // friend class-can access private class members
   friend class TwoThreeTree;
};  // end TreeNode