diff --git a/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java b/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
index 3d5fe95..5f50b6a 100644
--- a/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
+++ b/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
@@ -41,10 +41,12 @@ public class ClassExamPaperAddExe {
 
     @Transactional(rollbackFor = Exception.class)
     public boolean execute(ClassExamPaperAddCmd cmd) {
-        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
-        if (count > 0) {
-            throw new BizException("该班级已存在试卷");
-        }
+        // 先删除老试卷。
+        classExamPaperRepository.deleteByClassId(cmd.getClassId());
+//        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
+//        if (count > 0) {
+//            throw new BizException("该班级已存在试卷");
+//        }
 
 
         ClassExamPaperE classExamPaperE = new ClassExamPaperE();
@@ -66,11 +68,12 @@ public class ClassExamPaperAddExe {
 
     @Transactional(rollbackFor = Exception.class)
     public boolean executeAutoSave(ClassExamPaperAutoAddCmd cmd) {
-
-        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
-        if (count > 0) {
-            throw new BizException("该班级已存在试卷");
-        }
+        // 先删除老试卷。
+        classExamPaperRepository.deleteByClassId(cmd.getClassId());
+//        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
+//        if (count > 0) {
+//            throw new BizException("该班级已存在试卷");
+//        }
 
         ClassExamPaperE classExamPaperE = new ClassExamPaperE();
         BeanUtils.copyProperties(cmd, classExamPaperE);