save project

my_Tetris.py

@@ -22,8 +22,9 @@ while True:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT:
-                center[0]+=1
-            else event.key
+                if center[1]>15:
+                    center[1]-=1
+            elif event.key
 
     # 将背景图画上去
     screen.blit(background,(0,0))