为什么要remove

13-04-23 runc

<p class="indent">while (true) {<p class="indent">	selector.select();<p class="indent">		for (Iterator<SelectionKey> itor = selector.selectedKeys().iterator(); itor.hasNext();) {<p class="indent">				SelectionKey key = (SelectionKey) itor.next();<p class="indent">				itor.remove();<p class="indent">		
<p>[/code	<p class="indent"><p class="indent"><p class="indent">不明白为什么要remove,个人感觉每次执行Iterator<SelectionKey> itor = selector.selectedKeys().iterator(),都会回收

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