bug修复

src/main/java/com/project/exam/domain/service/impl/SubmitPaperDomainServiceImpl.java

@@ -109,10 +109,15 @@ public class SubmitPaperDomainServiceImpl implements SubmitPaperDomainService {
             }
         }
 
-        // 汇总总分：客观题 + 简答题
-        finalScore = scoringContext.getTotalScore();
-        // 四舍五入处理(不能超过100分)
-        finalScore = new BigDecimal(finalScore).setScale(2, RoundingMode.HALF_UP).min(new BigDecimal("100")).doubleValue();
+        // 全部答对直接给100分（无简答题且客观题全对）
+        if (!hasShortAnswer && scoringContext.getRightCount() == scoringContext.getObjectiveTotal()) {
+            finalScore = 100.0;
+        } else {
+            // 汇总总分：客观题 + 简答题
+            finalScore = scoringContext.getTotalScore();
+            // 四舍五入处理(不能超过100分)
+            finalScore = new BigDecimal(finalScore).setScale(2, RoundingMode.HALF_UP).min(new BigDecimal("100")).doubleValue();
+        }
         boolean isPassed = (finalScore >= task.getPassScore());
         record.setScore(finalScore);
         record.setPass(isPassed);