diff --git a/my_Tetris.py b/my_Tetris.py
index 1d5598d..65c4130 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -76,6 +76,9 @@ while True:
                 center[0] = center[0]+1
                 if check(center) == False:
                     center[0] = center[0]-1
+            
+            elif event.key == locals.K_UP:
+                old_
 
 
     # 将背景图画上去