vel2 current" data-toclevel="2"><a data-tochassubtree="false" href="../html/M_System_SystemTime_DiffTotalMS_1.htm" title="DiffTotalMS 方法 (DateTime, String)" tocid="M_System_SystemTime_DiffTotalMS_1">DiffTotalMS 方法 (DateTime, String)</a></div><div class="toclevel2" data-toclevel="2"><a data-tochassubtree="false" href="../html/M_System_SystemTime_DiffTotalMS_3.htm" title="DiffTotalMS 方法 (DateTimeOffset, String)" tocid="M_System_SystemTime_DiffTotalMS_3">DiffTotalMS 方法 (DateTimeOffset, String)<