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	<title>换行 - 四号程序员</title>
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		<title>Python中readline何时算EOF？</title>
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		<pubDate>Fri, 04 May 2012 09:20:02 +0000</pubDate>
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		<category><![CDATA[EOF]]></category>
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		<category><![CDATA[换行]]></category>
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					<description><![CDATA[其实这个困扰了我很久…… 一般情况下，我们是这么读文件的： for line in open(&#34;xxx&#34;): print line 但是有时候，我们想自己控制读取每一行，即open得到fp后，readline()，何时是退出呢？ 经过查找N多文档，得到一种很隐晦的说法是当返回空串时表示退出。 于是写法是： fp = .... while True: line = fp.readline() if len(line)==0[......] 继续阅读]]></description>
		
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