auto save

my_music.py

 import pygame
 from pygame import locals
-
+import random
 pygame.init()   # 初始化
 # 创建窗口
 screen = pygame.display.set_mode((640, 480))
@@ -12,12 +12,23 @@ last_img = pygame.image.load('last.png')  # 上一曲按钮
 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4.ogg')
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
-    if pygame.mixer.music.get_busy()==False:
-        pygame.mixer.music.play()
+    volume = 0.2
+    pygame.mixer.music.set_volume(volume)
+
+    if event.type == locals.KEYDOWN:
+        if event.key == locals.K_UP:
+            volume += 0.1
+            play_music.set_volume(volume)
+        if event.key == locals.K_DOWN:
+            volume -= 0.1
+            play_music.set_volume(volume)
+
+
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(stop_img, (270, 330))   # 暂停按钮