diff --git a/hi-drone/.DS_Store b/hi-drone/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..892a07d6227453008f7863f34c7f88ffe245e0c9
Binary files /dev/null and b/hi-drone/.DS_Store differ
diff --git a/hi-drone/openEuler_dronekit/README.md b/hi-drone/openEuler_dronekit/README.md
index 0ef88de38a3c54bb713b460a63d37811e8ff346e..18cb5b899975917c536c15ea0aaadb9dd90aed2b 100644
--- a/hi-drone/openEuler_dronekit/README.md
+++ b/hi-drone/openEuler_dronekit/README.md
@@ -243,3 +243,6 @@ python example4.py
 [Z410无人机使用手册](https://wiki.amovlab.com/pdf/Z410-4B%e6%97%a0%e4%ba%ba%e6%9c%ba%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c.pdf)
 
 ！！！无人机飞行请谨慎注意，遵守相关法规法律，使用飞行中注意自身安全！！！
+
+#add demo
+#check email address and username
\ No newline at end of file