主要是C++和模板。该材料所使用的是C语言，也许很多人会说C语言已经过时了，但是，我认为在数据结构的学习中，应该用尽量简单的语言，以免进入了语言的细枝末节中，反而冲淡了主题。- C++ and templates mainly are discussed. The material used in the C language, many people may say that the C language has become obsolete, but I think the data structure of learning, the language should be as simple as possible, to avoid the ramifications of entering the language, but dilute the theme .