save project

my_music.py

@@ -17,6 +17,17 @@ 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:
+                v+=0.1
+                if v>1:
+                    v=1
+                pygame.mixer.music.set_mode(v)
+            if event.key==locals.K_DOWN:
+                v-=0.1
+                if v<0:
+                    v=0
+                pygame.mixer.music.set_mode(v)
     if pygame.mixer.music.get_busy()==False:
         pygame.mixer.music.play()
     # 绘制画面