save project

my_game.py

@@ -23,6 +23,7 @@ jumpstate='running'
 y=400
 t=30
 bg_x=0
+road_x=0
 obs=random.choice([apple,stone,cacti])
 rect=obs.get_rect()
 rect.x=1000
@@ -57,7 +58,8 @@ while True:
             t=30
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    road_x-=8
+    screen.blit(road, (road_x, 500))
     screen.blit(wukong, (150, y))
     if rect.x<=0-rect.width:
         obs=random.choice([apple,stone,cacti])