diff --git a/datas/electromagnetic.jar b/datas/electromagnetic.jar
index 9d64260..3a71687 100644
Binary files a/datas/electromagnetic.jar and b/datas/electromagnetic.jar differ
diff --git a/src/ComacDBInstall.py b/src/ComacDBInstall.py
index f2e6499..ccbbd73 100644
--- a/src/ComacDBInstall.py
+++ b/src/ComacDBInstall.py
@@ -195,8 +195,7 @@ class InstallComacDb:
         # Java和JAR文件路径
         self.java_path = "D:/database/jdk/bin/java.exe"
         ensure_dir(self.app_log_dir)
-
-    pass
+        pass
 
     def start_comac_db(self):
         self.__delete_old_files(self.app_log_dir)
@@ -282,6 +281,8 @@ class InstallComacDb:
 
 
 if __name__ == '__main__':
+    # 安装mariadb相关服务
     InstallMariaDb().start_install_mariadb()
+    # 安装数据库组件
     InstallComacDb().start_comac_db()
     pass