ccessTokenOrAppKey</span></dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.string" target="_blank">System<span id="LSTD9752816_1"></span><script type="text/javascript">AddLanguageSpecificTextSet("LSTD9752816_1?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>String</a><br /></dd><dt><span class="parameter">data</span></dt><dd>类型：<a href="T_Senparc_Weixin_Work_AdvancedAPIs_Mass_SendFileData.htm">Senparc.Weixin.Work.AdvancedAPIs.Mass<span id="LSTD9752816_2"></span><script type="text/javascrip