save project

my_Tetris.py

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