save project

my_music.py

@@ -12,13 +12,26 @@ 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('test.wav')
+a=0.5
 
 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:
+                a+=0.1
+                if a>=1:
+                    a=1     
+            if event.key == locals.K_DOWN and a!=0:
+                a-=0.1
+                if a<=0:
+                    a=0
+        pygame.mixer.music.set_volume(a)
+     
     if pygame.mixer.music.get_busy()==False:
         pygame.mixer.music.play()
+        
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(stop_img, (270, 330))   # 暂停按钮