diff --git a/example/Snowflake/雪花.png b/example/Snowflake/雪花.png
deleted file mode 100644
index d6058a5..0000000
Binary files a/example/Snowflake/雪花.png and /dev/null differ
diff --git a/example/Snowflake/Snowflake.go b/example/snowflake/Snowflake.go
similarity index 99%
rename from example/Snowflake/Snowflake.go
rename to example/snowflake/Snowflake.go
index f7ce300..9f6509c 100644
--- a/example/Snowflake/Snowflake.go
+++ b/example/snowflake/Snowflake.go
@@ -4,7 +4,7 @@
  *  @Description：
  */
 
-package Snowflake
+package snowflake
 
 import (
 	"errors"
diff --git a/example/Snowflake/Snowflake_test.go b/example/snowflake/Snowflake_test.go
similarity index 97%
rename from example/Snowflake/Snowflake_test.go
rename to example/snowflake/Snowflake_test.go
index 0914311..79af1eb 100644
--- a/example/Snowflake/Snowflake_test.go
+++ b/example/snowflake/Snowflake_test.go
@@ -4,7 +4,7 @@
  *  @Description：
  */
 
-package Snowflake
+package snowflake
 
 import (
 	"fmt"
diff --git a/example/Snowflake/readme.md b/example/snowflake/readme.md
similarity index 100%
rename from example/Snowflake/readme.md
rename to example/snowflake/readme.md