save project

my_game.py

@@ -60,7 +60,7 @@ while True:
         if index >= 5:
             index = 0
     # 将背景图画上去    # 远处背景
-    bg_x-=900
+    bg_x-=7
     if bg_x<=-1000:
         bg_x=0
     screen.blit(background, (bg_x, 0))