save project

my_music.py

 import pygame
 from pygame import locals
-
 pygame.init()   # 初始化
 # 创建窗口
 screen = pygame.display.set_mode((640, 480))
@@ -11,10 +10,27 @@ stop_img = pygame.image.load('stop.png')  # 暂停按钮
 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')
+volume = 0.2
+pygame.mixer.music.set_volume(volume)
 while True:
     for event in pygame.event.get():
-        ????
+        if event.type == locals.QUIT:
+            # 接收到退出事件后退出程序
+            exit()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_UP:
+                volume += 0.1
+                if volume > 1:
+                    volume = 1
+                pygame.mixer.music.set_volume(volume)
+            if event.key == locals.K_DOWN:
+                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
     screen.blit(bg_img, (0, 0))      # 填充背景
@@ -23,4 +39,5 @@ while True:
     screen.blit(last_img, (120, 350))   # 上一曲
     screen.blit(next_img, (420, 350))   # 下一曲
     # 刷新画面
-    ???
+    pygame.display.update()
+