java 内存模型

https://doc.yonyoucloud.com/doc/wiki/project/java-concurrent/java-memory-model.html

https://blog.csdn.net/m0_45406092/article/details/127368475

https://blog.csdn.net/weixin_43820104/article/details/124019185

https://blog.csdn.net/shun12580/article/details/93834575