save project

my_music.py

@@ -17,20 +17,19 @@ while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             exit()
             exit()
-    if pygame.mixer.music.get_busy() == False:
-        pygame.mixer.music.play()
-        if event.key == locals.KEYDOWN:
+        if event.type == locals.KEYDOWN:
             if event.key == locals.K_UP:
             if event.key == locals.K_UP:
                 a+=0.1
                 a+=0.1
                 if a>1:
                 if a>1:
                     a = 1
                     a = 1
-                pygame.mixer.music.set_volume(volume)
+                pygame.mixer.music.set_volume(a)
             if event.key == locals.K_DOWN:
             if event.key == locals.K_DOWN:
                 a-=0.1
                 a-=0.1
                 if a<0:
                 if a<0:
                     a = 0
                     a = 0
-                pygame.mixer.music.set_volume(volume)
-        
+                pygame.mixer.music.set_volume(a)
+    if pygame.mixer.music.get_busy() == False:
+        pygame.mixer.music.play()    
     # 绘制画面
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(play_img, (270, 330))   # 暂停按钮
     screen.blit(play_img, (270, 330))   # 暂停按钮