//���ֱ������ķ�ʽ
/// <summary>
/// �������
/// </summary>
/// <param name="theRoot"></param>
public void InOrder(Node theRoot)
{
if (theRoot !=null)
{
InOrder(theRoot.Left);
theRoot.DisplayNode();
InOrder(theRoot.Right);
}
}
/// <summary>
/// �������
/// </summary>
/// <param name="theRoot"></param>
public void PreOrder(Node theRoot)
{
if (theRoot != null)
{
theRoot.DisplayNode();
PreOrder(theRoot.Left);
PreOrder(theRoot.Right);
}
}