Merge branch 'fix/1105' into test

mec-biz/src/main/java/com/ym/mec/biz/service/impl/StudentServiceImpl.java

@@ -1231,7 +1231,7 @@ public class StudentServiceImpl extends BaseServiceImpl<Integer, Student> implem
                 }
                 if(dto.getTrainStudentNum().compareTo(BigDecimal.ZERO) > 0){
                     dto.setTrainAvgTrainTime(dto.getTrainTotalTime().divide(dto.getTrainStudentNum(),2, 2));
-                    dto.setTrainStandRate(dto.getTrain1().divide(dto.getTrainStudentNum(),4, 2).multiply(decimal).setScale(2));
+                    dto.setTrainStandRate(new BigDecimal(dto.getTrain2() +dto.getTrain3()+dto.getTrain4()).divide(dto.getTrainStudentNum(),4, 2).multiply(decimal).setScale(2));
                 }
             }
         }