diff --git a/whatsmars-common/README.md b/whatsmars-common/README.md
index 152e8c6f0e7084c661cd757b0ad9764d1c294b42..daba6c15bd96bb27afee5fbdc59cd9e219d4c6f1 100644
--- a/whatsmars-common/README.md
+++ b/whatsmars-common/README.md
@@ -1,16 +1 @@
-whatsmars-common
-​	src
-​		test
-​			java
-​				org
-​					hongxi
-​						java
-​							io
-​							lang
-​							net
-​							nio
-​							rmi
-​							util
-​								concurrent
-​								function
-​								stream
\ No newline at end of file
+test 目录下包含 Java SE 相关的 demo
\ No newline at end of file