【修改】 C语言判分测试用例分数，正确加分，错误不加分

src/main/java/com/example/exam/exam/service/c/JudgementServiceImpl.java

@@ -198,8 +198,8 @@ public class JudgementServiceImpl implements JudgementService
                     BigDecimal singleScore = new BigDecimal((double) Integer.parseInt(scoreRate) / 100).setScale(2, BigDecimal.ROUND_HALF_UP);
                     // 单个测试用例正确情况下得分
                     BigDecimal oneCompileScore = compileScore.multiply(singleScore).setScale(2, BigDecimal.ROUND_HALF_UP);
-                    compile_score += Double.parseDouble(oneCompileScore.toString());
                     if (success) {
+                        compile_score += Double.parseDouble(oneCompileScore.toString());
                         judgementStr = HtmlAppender.appendHtmlLine(judgementStr, "✅ 测试用例：输入("+
                                 inText + ")" +
                                 "，正确结果：(" + resultTrueText + ")" +