bug fix studentCode的返回值改为身份证号，主观题接口返回nextId不正确的bug fix

examcloud-exchange-outer-api-provider/src/main/java/cn/com/qmth/examcloud/exchange/outer/api/provider/ExamQuestionOuterServiceProvider.java

@@ -199,7 +199,7 @@ public class ExamQuestionOuterServiceProvider extends ControllerSupport implemen
         for (PagedToBeMarkExamRecordBean pb : toBeMarkExamRecordBeanList) {
             OuterExamRecordBean resultBean = new OuterExamRecordBean();
             resultBean.setExamId(pb.getExamId());
-            resultBean.setStudentCode(pb.getStudentCode());
+            resultBean.setStudentCode(pb.getIdentityNumber());//因为外部接口定义的名字虽然叫studentCode，实际是身份证号
             resultBean.setName(pb.getStudentName());
             resultBean.setCollege(pb.getGrade());
             resultBean.setClassName(null);