save project

my_music.py

@@ -16,6 +16,18 @@ while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
             exit() 
+        
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_DOWN:
+                volume += 0.1
+                if volume > 1:
+                    volume=1
+                pygame.mixer.music.set_volume(volume)
+            if event.key == locals.K_UP:
+                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()
     # 绘制画面