save project

my_game.py

@@ -63,6 +63,14 @@ while True:
         index += 1
         index += 1
         if index >= 5:
         if index >= 5:
             index = 0
             index = 0
+        bg_x-=1
+        if bg_x<=-1000:
+            bg_x=0
+        screen.blit(background,(bg_x,0)) 
+         road_x-=1
+        if road_x<=-1000:
+            road_x=0
+        screen.blit(background,(road_x,0))     
     # 将背景图画上去
     # 将背景图画上去
     shan_x -=2
     shan_x -=2
     if shan_x <-1000:
     if shan_x <-1000: