save project

my_music.py

@@ -12,13 +12,23 @@ last_img = pygame.image.load('last.png')  # 上一曲按钮
 next_img = pygame.image.load('next.png')  # 下一曲按钮
 logo_img = pygame.image.load('logo.png')  # 中间logo
 pygame.mixer.music.load('歌曲4.ogg')
-a=0.5
+a=1
+pygame.mixer.music.set_volume(a)
 while True:
     for event in pygame.event.get():
         if event.type==pygame.QUIT:
             exit()
-        if st:
-            
+        if event.type==pygame.KEYDOWN:
+            if event.key==pygame.K_DOWN:
+                a-=0.1
+                if a<0:
+                    a=0
+                pygame.mixer.music.set_volume(a)
+            if event.key==pygame.K_UP:
+                a+=0.1
+                if a>10:
+                    a=10 
+                pygame.mixer.music.set_volume(a)                   
         if pygame.mixer.music.get_busy()==False:
             pygame.mixer.music.play()
     # 绘制画面