s="returnLabel">返回:</span></dt>
<dt><span class="throwsLabel">抛出:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
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<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或