二叉樹算法資料收集：
http://blog.sina.com.cn/s/blog_ba46b52b0101i6mj.html
http://blog.sina.com.cn/s/blog_70600f720100ujnp.html
http://blog.csdn.net/kiritor/article/details/8892648
http://iask.sina.com.cn/b/9950186.html
http://blog.csdn.net/kangojian/article/details/3990212
http://blog.csdn.net/kangojian/article/details/3990206
http://wenwen.soso.com/z/q69052983.htm
http://justsee.iteye.com/blog/1097176
平衡二叉樹：
http://blog.csdn.net/zxman660/article/details/7940190
二叉樹的深度：
http://blog.163.com/xiaopengyan_109/blog/static/14983217320108168618624/
二叉樹刪除：
http://www.cnblogs.com/xunmengyoufeng/archive/2012/10/01/BityTree.html
http://marcospring.iteye.com/blog/1623571
http://www.cnblogs.com/KeenLeung/archive/2012/11/03/2750545.html
二叉樹查找節點：
http://www.cnblogs.com/KeenLeung/archive/2012/11/03/2750545.html