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typo #28

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typo
xnmll Aug 23, 2021
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Merge pull request #1 from xnmll/xnmll-patch-1
xnmll Aug 23, 2021
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4 changes: 2 additions & 2 deletions 03.java内存模型以及happens-before规则/Java内存模型以及happens-before.md
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在多线程条件下，多个线程肯定会相互协作完成一件事情，一般来说就会涉及到**多个线程间相互通信告知彼此的状态以及当前的执行结果**等，另外，为了性能优化，还会**涉及到编译器指令重排序和处理器指令重排序**。下面会一一来聊聊这些知识。

#2. 内存模型抽象结构
# 2. 内存模型抽象结构 #
线程间协作通信可以类比人与人之间的协作的方式，在现实生活中，之前网上有个流行语“你妈喊你回家吃饭了”，就以这个生活场景为例，小明在外面玩耍，小明妈妈在家里做饭，做晚饭后准备叫小明回家吃饭，那么就存在两种方式：

小明妈妈要去上班了十分紧急这个时候手机又没有电了，于是就在桌子上贴了一张纸条“饭做好了，放在...”小明回家后看到纸条如愿吃到妈妈做的饭菜，那么，如果将小明妈妈和小明作为两个线程，那么这张纸条就是这两个线程间通信的共享变量，通过读写共享变量实现两个线程间协作；
Expand Down Expand Up @@ -142,4 +142,4 @@ JMM的设计图为：

> 参考文献

《java并发编程的艺术》
《java并发编程的艺术》