save project

my_game.py

@@ -55,6 +55,9 @@ while True:
     if index == 5:
     if index == 5:
         index = 5 
         index = 5 
     # 将背景图画上去
     # 将背景图画上去
+    bg_x -= 1
+    if bg_x<=-1000:
+        bg_x = 0
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(road, (0, 500))
     screen.blit(hero, (150, y))
     screen.blit(hero, (150, y))