save project

my_music.py

@@ -23,11 +23,12 @@ while True:
                 volume+=0.1
                 if volume>1:
                     volume=1
+                pygame.mixer.music.set_volume(volume)
             if event.key==locals.K_DOWN:
                 volume-=0.1
                 if volume<0:
                     volume=0
-        pygame.mixer.music.set_volume(volume)                
+                pygame.mixer.music.set_volume(volume)     
     if pygame.mixer.music.get_busy()==False:
         pygame.mixer.music.play()
     # 绘制画面