修复核酸检测结果查询和导出的bug

src/main/java/thyyxxk/webserver/service/examinations/CovidExamService.java

@@ -68,7 +68,8 @@ public class CovidExamService {
                 }
             }
         }
-        for (int index : parentList) {
+        for (int i = 0; i < parentList.size(); i++) {
+            int index = parentList.get(i) - i;
             list.remove(index);
         }
         list.addAll(childrenList);