diff --git a/src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java b/src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java
index d389066..174d3a4 100644
--- a/src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java
+++ b/src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java
@@ -10,14 +10,18 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.teaching.backend.common.ErrorCode;
 import com.teaching.backend.exception.BusinessException;
+import com.teaching.backend.mapper.chapter.ChapterMapper;
 import com.teaching.backend.mapper.courses.*;
+import com.teaching.backend.mapper.know.KnowRelationshipMapper;
 import com.teaching.backend.mapper.records.LearningRecordsMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsAdminMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsAdminRoleRelationMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsTeacherMapper;
 import com.teaching.backend.model.dto.courses.CoursesDTO;
 import com.teaching.backend.model.dto.courses.PageDTO;
+import com.teaching.backend.model.entity.chapter.Chapter;
 import com.teaching.backend.model.entity.courses.*;
+import com.teaching.backend.model.entity.know.KnowRelationship;
 import com.teaching.backend.model.entity.records.LearningRecords;
 import com.teaching.backend.model.entity.umsAdmin.UmsAdmin;
 import com.teaching.backend.model.entity.umsAdmin.UmsAdminRoleRelation;
diff --git a/src/main/java/com/teaching/backend/service/know/IKnowRelationshipService.java b/src/main/java/com/teaching/backend/service/know/IKnowRelationshipService.java
new file mode 100644
index 0000000..861b1d7
--- /dev/null
+++ b/src/main/java/com/teaching/backend/service/know/IKnowRelationshipService.java
@@ -0,0 +1,16 @@
+package com.teaching.backend.service.know;
+
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.teaching.backend.model.entity.know.KnowRelationship;
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author author
+ * @since 2024-06-20
+ */
+public interface IKnowRelationshipService extends IService<KnowRelationship> {
+}
diff --git a/src/main/resources/mapper/KnowRelationshipMapper.xml b/src/main/resources/mapper/KnowRelationshipMapper.xml
new file mode 100644
index 0000000..ab885f2
--- /dev/null
+++ b/src/main/resources/mapper/KnowRelationshipMapper.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.teaching.backend.know_realtionship.mapper.KnowRelationshipMapper">
+
+</mapper>