save project

my_game.py

@@ -64,7 +64,7 @@ while True:
     if bg_x<=-1000 :
     if bg_x<=-1000 :
         bg_x = 0
         bg_x = 0
     screen.blit(background, (bg_x, 0))     # 远处背景
     screen.blit(background, (bg_x, 0))     # 远处背景
-    road_x -= 8
+    road_x -= 12 
     if road_x<=-1000 :
     if road_x<=-1000 :
         road_x = 0
         road_x = 0
     screen.blit(road, (road_x, 500))     # 路
     screen.blit(road, (road_x, 500))     # 路