diff --git a/src/main/java/com/teaching/mapper/KnowMapper.java b/src/main/java/com/teaching/mapper/KnowMapper.java
index 9fe1a5f..00e6cf3 100644
--- a/src/main/java/com/teaching/mapper/KnowMapper.java
+++ b/src/main/java/com/teaching/mapper/KnowMapper.java
@@ -6,4 +6,5 @@ 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 2ab9683..0a8724a 100644
--- a/src/main/java/com/teaching/model/entity/Know.java
+++ b/src/main/java/com/teaching/model/entity/Know.java
@@ -13,6 +13,7 @@ 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 eb3dd27..29a4f1b 100644
--- a/src/main/java/com/teaching/service/IknowService.java
+++ b/src/main/java/com/teaching/service/IknowService.java
@@ -8,3 +8,4 @@ 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 51f843c..556471e 100644
--- a/src/main/java/com/teaching/service/impl/IknowServiceimpl.java
+++ b/src/main/java/com/teaching/service/impl/IknowServiceimpl.java
@@ -7,6 +7,7 @@ import com.teaching.service.IknowService;
 import org.springframework.stereotype.Service;
 
 @Service
-public class IknowServiceimpl extends ServiceImpl<KnowMapper,Know> implements IknowService {
+public class IknowServiceimpl extends ServiceImpl<KnowMapper,Know> implements IknowServic
+        e {
 
 }