sgType</a><br /></dd><dt><span class="parameter">doc</span> (Optional)</dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.xml.linq.xdocument" target="_blank">System.Xml.Linq<span id="LST52658A4C_2"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST52658A4C_2?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>XDocument</a><br /></dd></dl><h4 class="subHeading">返回值</h4>类型：<a href="T_Senparc_NeuChar_Entities_RequestMessageBase.htm">RequestMessageBase</a></div><div class="c