乐观锁和悲观锁的不同场景

乐观锁和悲观锁在使用场景上有一些不同。乐观锁适用于并发读取操作多于写入操作的场景，它假设在并发操作中很少会发生冲突，因此不会加锁，而是通过比较数据版本号或使用CAS（Compare and Swap）操作来实现数据一致性的控制。乐观锁在多读少写的情况下可以提高性能。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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