diff --git a/my_Tetris.py b/my_Tetris.py
index 426d72c..47d8edf 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -16,10 +16,24 @@ clock = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 background = pygame.image.load('bg.png')
 font = pygame.font.Font('STKAITI.TTF', 60)  # 字体
 
+center=[2,8]
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT:
+                if center[1]<15:
+                    center[1]=center[1]+1
+            elif event.key==locals.K_LEFT:
+                if center[1]>1:
+                    center[1]=center[1]-1
+
+
+            elif event.key==locals.K_DOWN:
+                if center[0]<25:
+                    center[0]=center[0]+1
 
     # 将背景图画上去
     screen.blit(background,(0,0))