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Merge pull request Snailclimb#653 from woshichengpeng/patch-2

Update AQS.md

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Original file line number	Diff line number	Diff line change
`@@ -84,7 +84,7 @@ protected final boolean compareAndSetState(int expect, int update) {`
`84`	`84`	`- 公平锁:按照线程在队列中的排队顺序,先到者先拿到锁`
`85`	`85`	`- 非公平锁:当线程要获取锁时,先通过两次 CAS 操作去抢锁,如果没抢到,当前线程再加入到队列中等待唤醒。`
`86`	`86`
`87`		-> 说明:下面这部分关于 `ReentrantLock` 源代码内容节选自:https://www.javadoop.com/post/AbstractQueuedSynchronizer-2,这是一篇很不错文章,推荐阅读。
	`87`	+> 说明:下面这部分关于 `ReentrantLock` 源代码内容节选自:https://www.javadoop.com/post/AbstractQueuedSynchronizer-2,这是一篇很不错文章,推荐阅读。
`88`	`88`
`89`	`89`	`下面来看 ReentrantLock 中相关的源代码:`
`90`	`90`

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