C++ 实现 ArrayList 和java的Arraylist功能一样-C++ ArrayList and java achieve the same function of Arraylist

自定义实现的ArrayList数据结构,有大量注释以及编写思路,帮助新手用Java语言来实现数据结构-Custom implementations of ArrayList data structure, there are a large number of comments and writing ideas, help novice in the Java language to implement the data structure