save project

my_music.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-
+volume=0.2
+pygame.mixer.music.set_volume(volume)
 pygame.init()   # 初始化
 pygame.init()   # 初始化
-# 创建窗口
+pygame.mixer.music.set_volume(volume)
 screen = pygame.display.set_mode((640, 480))
 screen = pygame.display.set_mode((640, 480))
 # 载入图片、资源
 # 载入图片、资源
 bg_img = pygame.image.load('background.png')  # 背景图
 bg_img = pygame.image.load('background.png')  # 背景图
@@ -17,6 +18,19 @@ while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type==local s.GUIT:
         if event.type==local s.GUIT:
             exit()
             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>1:
+                   volume=1 
+            pygame.mixer.music.set_volume(volume)
     if pygame.mixer.music.get_busy()==False:
     if pygame.mixer.music.get_busy()==False:
        pygame.mixer.music.play()  
        pygame.mixer.music.play()