此文件包描述了红黑树，并且包含了代码，此代码出自Linux内核-This document describes a red-black tree package, and includes code, this code from the Linux kernel

c语言实现了红黑树的基本初始化插入删除，采用先序遍历和中序遍历输出-c language to achieve a red-black tree insertion and deletion basic initialization using preorder and preorder output