diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassCourseServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassCourseServiceImpl.java
index ae577bc0..dbc56789 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassCourseServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassCourseServiceImpl.java
@@ -66,11 +66,6 @@ public class ClassCourseServiceImpl extends ServiceImpl<ClassCourseMapper, Class
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(ClassCourseDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(ClassCourseDO::getUpdateTime, LocalDateTime.now())
-                .eq(ClassCourseDO::getId, id)
-                .eq(ClassCourseDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 }
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassManagementServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassManagementServiceImpl.java
index c05bc01c..49a95646 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassManagementServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassManagementServiceImpl.java
@@ -88,12 +88,7 @@ public class ClassManagementServiceImpl extends ServiceImpl<ClassManagementMappe
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(ClassManagementDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(ClassManagementDO::getUpdateTime, LocalDateTime.now())
-                .eq(ClassManagementDO::getId, id)
-                .eq(ClassManagementDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 
     @Override
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentExamRecordServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentExamRecordServiceImpl.java
index 2fb526d6..0afb4edb 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentExamRecordServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentExamRecordServiceImpl.java
@@ -72,11 +72,6 @@ public class ClassStudentExamRecordServiceImpl extends ServiceImpl<ClassStudentE
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(ClassStudentExamRecordDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(ClassStudentExamRecordDO::getUpdateTime, LocalDateTime.now())
-                .eq(ClassStudentExamRecordDO::getId, id)
-                .eq(ClassStudentExamRecordDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 }
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentLearningRecordServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentLearningRecordServiceImpl.java
index 8b00e79b..98e275ea 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentLearningRecordServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentLearningRecordServiceImpl.java
@@ -69,11 +69,6 @@ public class ClassStudentLearningRecordServiceImpl extends ServiceImpl<ClassStud
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(ClassStudentLearningRecordDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(ClassStudentLearningRecordDO::getUpdateTime, LocalDateTime.now())
-                .eq(ClassStudentLearningRecordDO::getId, id)
-                .eq(ClassStudentLearningRecordDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 }
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentServiceImpl.java
index 66e6487a..4c6643c9 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/ClassStudentServiceImpl.java
@@ -81,11 +81,6 @@ public class ClassStudentServiceImpl extends ServiceImpl<ClassStudentMapper, Cla
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(ClassStudentDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(ClassStudentDO::getUpdateTime, LocalDateTime.now())
-                .eq(ClassStudentDO::getId, id)
-                .eq(ClassStudentDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 }
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CourseManagementServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CourseManagementServiceImpl.java
index ac5e4a6f..3b6d09ae 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CourseManagementServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CourseManagementServiceImpl.java
@@ -121,12 +121,7 @@ public class CourseManagementServiceImpl extends ServiceImpl<CourseManagementMap
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(CourseManagementDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(CourseManagementDO::getUpdateTime, LocalDateTime.now())
-                .eq(CourseManagementDO::getId, id)
-                .eq(CourseManagementDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 
     @Override
diff --git a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CoursewareManagementServiceImpl.java b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CoursewareManagementServiceImpl.java
index 87652b91..31e689b7 100644
--- a/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CoursewareManagementServiceImpl.java
+++ b/safety-cedu-service/src/main/java/org/qinan/cedu/service/impl/CoursewareManagementServiceImpl.java
@@ -89,12 +89,7 @@ public class CoursewareManagementServiceImpl extends ServiceImpl<CoursewareManag
 
     @Override
     public boolean deleteById(Long id) {
-        return this.lambdaUpdate()
-                .set(CoursewareManagementDO::getDeleteEnum, DeleteEnum.TRUE.getCode())
-                .set(CoursewareManagementDO::getUpdateTime, LocalDateTime.now())
-                .eq(CoursewareManagementDO::getId, id)
-                .eq(CoursewareManagementDO::getDeleteEnum, DeleteEnum.FALSE.getCode())
-                .update();
+        return baseMapper.deleteById(id) > 0;
     }
 
     @Override