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<p>Obtain the version number of the library. </p><dl class="section return"><dt>返回</dt><dd>std::string The version string. </dd></dl>

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这是这个函数的调用关系图:</div>
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<div class="center"><img src="group__crfsuite__hpp__api__doc_gaa8ef1fab26ec65f18b7e34e6edac5ef5_icgraph.png" border="0" usemap="#group__crfsuite__hpp__api__doc_gaa8ef1fab26ec65f18b7e34e6edac5ef5_icgraph" a