save project

my_game.py

@@ -79,6 +79,7 @@ while True:
         if bg_x<-1000:
             bg_x=0
         screen.blit(background, (bg_x, 0))     # 远处背景
+        road_x-=8
         if road_x<-1000:
             road_x=0
         screen.blit(road, (road_x, 500)) # 路