save project

my_game.py

@@ -52,7 +52,7 @@ while True:
             jumpState = "runing"
             t =30
     road_x-=8
-    back_x-=3
+    back_x-=1
     if road_x<=-1000:
         road_x=0
     if back_x<=-1000:
@@ -78,4 +78,4 @@ while True:
     screen.blit(obstacle, (rect.x, rect.y)) 
     # 刷新画面
     pygame.display.update()
-    FPS.tick(60)
\ No newline at end of file
+    FPS.tick(30)
\ No newline at end of file