diff --git a/w5/Bike.java b/w5/Bike.java
deleted file mode 100644
index 0266b03..0000000
--- a/w5/Bike.java
+++ /dev/null
@@ -1,6 +0,0 @@
-public class Bike extends Vehicle {
-	@Override
-	public void run() {
-		System.out.println("自行车在慢慢骑行");
-	}
-}
\ No newline at end of file