save project

my_game.py

@@ -61,10 +61,10 @@ while True:
             index = 0
     road_x-=8
     if road_x<=-1000:
-        road_=0
+        road_x=0
     bg_x-=1
     if bg_x<=-1000:
-        bg_=0
+        bg_x=0
     # 将背景图画上去
     screen.blit(background, (bg_x, 0))     # 远处背景
     screen.blit(road, (road_x, 500))     # 路