试卷结构中分数默认给出平均分，保留2位小数

stmms-biz/src/main/java/cn/com/qmth/stmms/biz/exam/service/impl/ExamSubjectPaperServiceImpl.java

@@ -80,7 +80,7 @@ public class ExamSubjectPaperServiceImpl extends BaseQueryService<ExamSubjectPap
 			double totalScore = examSubjectPaper.getTotalScore();
 			Integer n = examSubjectPaper.getObjective();
 			Integer m =1;
-			DecimalFormat df   = new DecimalFormat("######0");
+			DecimalFormat df   = new DecimalFormat("####.00");
 			//先查询eb_exam_subject 表中是否有对应的试卷详细结构信息
 			List<ExamQuestion> examQuestionList = examQuestionDao.findByExamIdAndSubjectCodeAndObjectiveAndMainNumber(examSubjectPaper.getExamId(), examSubjectPaper.getCode(), (n.equals(1))?true:false, examSubjectPaper.getMainNumber());