auto save

my music.py

@@ -23,15 +23,15 @@ while True:
     for event in pygame.event.get(): #生成所有事件
         if event.type == locals.QUIT: #当点击退出键
             exit() #退出
-        if event.type == locals.KEYDOWN:
-            if event.key == locals.K_UP:
-                volume += 0.1
-                if volume > 1:
-                    volume = 1
-            if event.key == locals.K_DOWN:
-                volume -= 0.1
-                if volume < 0:
-                    volume = 0
+        if event.type == locals.KEYDOWN:#当出现键盘事件
+            if event.key == locals.K_UP:#当按下上键
+                volume += 0.1 #音量+0.1
+                if volume > 1:#如果音量大于1
+                    volume = 1 #设音量为1
+            if event.key == locals.K_DOWN:#当按下下键
+                volume -= 0.1#音量-0.1
+                if volume < 0:#如果音量小于0
+                    volume = 0#设音量为1
 
     if pygame.mixer.music.get_busy() == False: #检测音乐是否正在播放-如果不在播放    
         pygame.mixer.music.play() #播放音乐