public static void main(String[] args) { Map map1 =new HashMap<>(); ma...

原理，保存时，自动重启

begin

lists.newarraylist()： List list = new ArrayList (); new arraylist() ： L...

https://www.cnblogs.com/codething/p/9321174.html 枚举ENUM的tostring() value...

https://www.cnblogs.com/Jeremy2001/p/10782819.html

》？？？？？？？

https://www.cnblogs.com/dotgua/p/6354151.html?utm_source=itdadao&utm_med...