diff --git a/src/main/java/com/teaching/mapper/KnowMapper.java b/src/main/java/com/teaching/mapper/KnowMapper.java
index 00e6cf3..9fe1a5f 100644
--- a/src/main/java/com/teaching/mapper/KnowMapper.java
+++ b/src/main/java/com/teaching/mapper/KnowMapper.java
@@ -6,5 +6,4 @@ import org.apache.ibatis.annotations.Mapper;
 
 @Mapper
 public interface KnowMapper extends BaseMapper<Know> {
-
 }
diff --git a/src/main/java/com/teaching/model/entity/Know.java b/src/main/java/com/teaching/model/entity/Know.java
index 0a8724a..2ab9683 100644
--- a/src/main/java/com/teaching/model/entity/Know.java
+++ b/src/main/java/com/teaching/model/entity/Know.java
@@ -13,7 +13,6 @@ import java.time.LocalDateTime;
 @Data
 public class Know {
 
-
     //内部编号
     private Long id ;
 
diff --git a/src/main/java/com/teaching/service/IknowService.java b/src/main/java/com/teaching/service/IknowService.java
index 534382b..eb3dd27 100644
--- a/src/main/java/com/teaching/service/IknowService.java
+++ b/src/main/java/com/teaching/service/IknowService.java
@@ -7,5 +7,4 @@ import org.springframework.stereotype.Service;
 
 public interface IknowService extends IService<Know> {
 
-
 }
diff --git a/src/main/java/com/teaching/service/impl/IknowServiceimpl.java b/src/main/java/com/teaching/service/impl/IknowServiceimpl.java
index 2facbc0..51f843c 100644
--- a/src/main/java/com/teaching/service/impl/IknowServiceimpl.java
+++ b/src/main/java/com/teaching/service/impl/IknowServiceimpl.java
@@ -9,5 +9,4 @@ import org.springframework.stereotype.Service;
 @Service
 public class IknowServiceimpl extends ServiceImpl<KnowMapper,Know> implements IknowService {
 
-
 }