public void SaveReportMetadata <T>(ExamResultMetadata <T> reportMetadata) where T : BaseCheckResult
{
var outPath = getOutPath();
var xml = CommunicationHelper.SerializerToXml(reportMetadata);
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
doc.Save(outPath + "Report_" + DateTime.Now.ToString("yyyy-MM-dd HH：mm：ss：ffff") + ".xml");
}