二叉树及其相如按操作C程序代码 凹入表示法输出 二叉树的创建 结点内容用字符串表示 二叉树的节点数 叶子数 层次遍历 前序 中序 后序遍历 查找结点 删除结点 删除结点及其子树 再用凹入表示法输出-Binary Tree and its operation, such as by indentation C code representation of the output tree to create the content node tree with the string that leaves the number of nodes traverse level after the pre-order traversal in order to find node point node to delete and delete subtree node that use indentation method output