save project

my_game.py

@@ -22,6 +22,8 @@ hero = [pygame.image.load('hero1.png'),
 
 index = 0 
 jumpstate ="runing"
+road_X = 0
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -50,8 +52,12 @@ while True:
 
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    road_X-=5
+    if road_X<-1000:
+        road_X=0
+    screen.blit(road, (road_X, 500))
     screen.blit(hero1, (150, y))
+    
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)
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