auto save

my_music.py

@@ -27,18 +27,23 @@ while True:
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
+            #按下“↑”键音量增加
             if event.key == locals.K_UP:
                 volume += 0.1
                 if volume < 0 or volume==0:
                     volume = 0
+                #设置音量上限
                 pygame.mixer.music.set_volume(volume)
+            #按下“↓”键音量减少
             if event.key == locals.K_DOWN:
                 volume -= 0.1
                 if volume < 0 or volume==0:
                     volume = 0
+                #设置音量下限
                 pygame.mixer.music.set_volume(volume)
         if event.type == locals.MOUSEBUTTONDOWN:
             click += 1
+            #检测播放音乐是否停止
             if click%2 == 0:
                 pygame.mixer.music.unpause()
                 start = stop_img