修改代码

pattern-command/src/main/java/org/panda/command/Main.java

@@ -29,8 +29,6 @@ public class Main extends JFrame implements ActionListener, MouseMotionListener,
         setVisible(true);
     }
 
-
-
     @Override
     public void actionPerformed(ActionEvent e) {
         if (e.getSource() == clearButton){