save project

my_music.py

@@ -13,7 +13,7 @@ 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1.wav')
-a=0.5
+volume=0.5
 pygame.mixer.music.set_volume(volume)
 while True:
     for event in pygame.event.get():
@@ -21,14 +21,14 @@ while True:
             exit()
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_w:
-                a+=0.1
-                if a>1:
-                    a=1
+                volume+=0.1
+                if volume>1:
+                    volume=1
                 pygame.mixer.music.set_volume(volume)
             if event.key==locals.K_s:
-                a-=0.1
-                if a<0:
-                    a=0
+                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()