save project

my_Tetris.py

@@ -22,7 +22,7 @@ while True:
             exit()
 
     # 将背景图画上去
-    screen.blit(backjround,(0,0))
+    screen.blit(background,(0,0))
     score_text = font.render(str(score), True,(0,0,0))
     screen.blit(score_text , (350,70))