手动输入各个结点建立二叉树(递归) ,普通二叉树的先序和后序遍历(递归),中序线索化(递归), 线索二叉树的先序和中序遍历(递归),线索二叉树的中序遍历(非栈、非递归), 层次遍历(使用队列),销毁整棵二叉树(递归)-Manually enter each node to build a binary tree (recursively), common binary tree inorder and postorder traversal (recursive), the sequence

zigbee，实现zigbee节点通过串口向上位机发送传感器收集到的数据，通sensor monitor查看节点之间的关系(ZigBee, the ZigBee node sends the data collected by the sensor through the serial port through the serial port, and looks through the relationship between the nodes through the sensor moni