tree.h

有关树的遍历问题

typedef enum PointerTag{Link,Thread};


typedef struct  treeNode
{
	TElemType    data;
	struct  treeNode  *lchild,*rchild;
	PointterTag    LTag,RTag;
}treeNode,*treeTree;


struct PointterTag
{
	int LTag;
	int RTag;
}PointterTag;