说明：  仅是本人学习数据结构的资料，相信各位都知道了。请让我继续学习，我以后回好好奉献我的学习成果，并且会更好。
(I am just learning the data structure of information, I think you all know. Let me continue to learn, I will dedicate my back to a good learning outcomes, and will be even better.)