save project

my_music.py

@@ -15,10 +15,26 @@ pygame.mixer.music.load('歌曲4.ogg')
 
 start = stop_img
 click = 0
+
+volume = 0.2
+pygame.mixer.music.set_volume(volume)
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_UP:
+                volume += 0.1
+                if volume < 0 or volume==0:
+                    volume = 0
+                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)
+
+
     if pygame.mixer.music.get_busy() == False:
         pygame.mixer.music.play()