diff --git a/Engine.java b/Engine.java
new file mode 100644
index 0000000..a0b7176
--- /dev/null
+++ b/Engine.java
@@ -0,0 +1,39 @@
+package ����;
+
+
+/**
+ * @author The Administrator
+ * @version 1.0
+ * @created 26-10��-2025 14:02:27
+ */
+class Engine {
+
+	/**
+	 * 组合关系：引擎完全拥有活塞数�?
+	 */
+	private Piston pistons[];
+
+
+
+	public void finalize() throws Throwable {
+
+	}
+	public Engine(){
+
+	}
+
+	/**
+	 * 引擎点火启动，带动活塞运�?
+	 */
+	public void ignite(){
+
+	}
+
+	/**
+	 * 
+	 * @param gearRatio
+	 */
+	public void setGearRatio(double gearRatio){
+
+	}
+}//end Engine
\ No newline at end of file