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volatile原理技术知识整理
source link: https://juejin.im/post/5e17a5735188254c0a0409f1
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volatile是一种轻量且在有限的条件下线程安全技术，它保证修饰的变量的可见性和有序性，但非原子性。相对于synchronize高效，而常常跟synchronize配合使用。 一. Java内存模型 这里主要描述的线程，工作内存，主存的变量的读写关系：
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