save project

my_game.py

@@ -61,7 +61,7 @@ while True:
     if background_x<-1000:
         background_x=0
     # 将背景图画上去
-    screen.blit(background, (0, 0))
+    screen.blit(background, (background_x, 0))
     screen.blit(road, (rode_x, 500))
     screen.blit(wukong, (150, wukong_y))