ConcurrentHashMap迭代器删除

ConcurrentHashMap的迭代器可以安全地删除元素，而不会抛出java.util.ConcurrentModificationException异常。这是因为ConcurrentHashMap使用了弱一致性迭代器，它可以在遍历时进行删除操作而不会引发异常。与其他容器，如HashMap或ArrayList不同，当一个线程在遍历时，其他线程插入或删除元素会引起迭代器错误异常。但ConcurrentHashMap可以在并发情况下遍历元素，且可以感知到元素的更新。因此，使用ConcurrentHashMap的迭代器进行删除操作是安全的。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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