【修改】mysql关键字0判断

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/controller/service/mysql/MysqlServericeImpl.java

@@ -859,9 +859,15 @@ public class MysqlServericeImpl implements IMysqlServerice {
                 .sum();
 
         //乘以 对了多少个 关键字 权值
-        double finalRoundedScore = new BigDecimal(
-                ((double) totalScoreRate / totalKeyScoreInt) * singleScore
-        ).setScale(2, RoundingMode.HALF_UP).doubleValue();
+        double finalRoundedScore;
+        if (totalKeyScoreInt == 0) {
+            // 如果总键值为0，可以设置为0或其他默认值
+            finalRoundedScore = 0.0;
+        } else {
+            finalRoundedScore = new BigDecimal(
+                    ((double) totalScoreRate / totalKeyScoreInt) * singleScore
+            ).setScale(2, RoundingMode.HALF_UP).doubleValue();
+        }
 
         appendToFile(answerLogPath,"❌学生语句"+sql+"不正确,语句权值："+scoreRateStr+",关键权值："+totalKeyScoreInt+",答对得分点为："+matchedKeywords+",答对关键得分权值"+ totalScoreRate+ ",得分" + finalRoundedScore);
         return  finalRoundedScore;