处理缺考人数

TEAMModelFunction/TriggerExam.cs

@@ -367,7 +367,7 @@ namespace TEAMModelFunction
                     //先与第一个值取并集
                     if (examResults.Count > 0)
                     {
-                        losStu.Union(examResults[0].lostStus);
+                        losStu = losStu.Union(examResults[0].lostStus).ToList();
                         foreach (ExamResult examResult in examResults)
                         {
                             if (info.id == examResult.examId)