diff --git a/.idea/libraries/Maven__org_apache_hadoop_hadoop_hdfs_2_6_4.xml b/.idea/libraries/Maven__org_apache_hadoop_hadoop_hdfs_2_6_4.xml
index 1dc1b8a..fd77afb 100644
--- a/.idea/libraries/Maven__org_apache_hadoop_hadoop_hdfs_2_6_4.xml
+++ b/.idea/libraries/Maven__org_apache_hadoop_hadoop_hdfs_2_6_4.xml
@@ -21,7 +21,7 @@
       -->
       <root url="jar://$MAVEN_REPOSITORY$/org/apache/hadoop/hadoop-hdfs/2.6.4/hadoop-hdfs-2.6.4.jar!/" />
     </CLASSES>
-    <!-- 
+    <!--
         <JAVADOC>元素的功能是配置该 Maven 库对应的 Java 文档相关配置信息，
         开发人员借助此配置，能够便捷地查阅库内各类、各方法等元素所附带的详细文档注释内容，有助于更好地理解并运用这个库。
     -->
diff --git a/src/main/java/cn/edu/hust/session/CategorySortKey.java b/src/main/java/cn/edu/hust/session/CategorySortKey.java
index cdc07ee..3e00fcd 100644
--- a/src/main/java/cn/edu/hust/session/CategorySortKey.java
+++ b/src/main/java/cn/edu/hust/session/CategorySortKey.java
@@ -115,5 +115,5 @@ public class CategorySortKey implements Ordered<CategorySortKey>, java.io.Serial
         this.clickCount = clickCount;
         this.orderCount = orderCount;
         this.payCount = payCount;
-    }
+    }//
 }