diff --git a/W27/README.md b/W27/README.md
deleted file mode 100644
index 3aba393..0000000
--- a/W27/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-java
-
-
-
diff --git a/W27/实验1/HelloWorld.java b/W27/实验1/HelloWorld.java
deleted file mode 100644
index 8b20ecc..0000000
--- a/W27/实验1/HelloWorld.java
+++ /dev/null
@@ -1,5 +0,0 @@
-public class HelloWorld {
-    public static void main(String[] args) {
-        System.out.println("Hello World!");
-    }
-}
\ No newline at end of file