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volatile变量与普通变量的区别
source link: https://juejin.im/post/59cf5bedf265da06710dd337
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我们通常会用volatile实现一些需要线程安全的代码（也有很多人不敢用，因为不了解），但事实上volatile本身并不是线程安全的，相对于synchoronized，它有更多的使用局限性，只能限制在某些特定的场景。本篇文章的目的就是让大家对 volatile
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