save project

my_music.py

@@ -17,6 +17,16 @@ while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
             exit()
+        pygame.mixer.music.set_volume(a)
+        if event.type==locals.KEYDOWN:
+            if event.Key==locals.k_w:
+                a+=0.1
+                if a>1:
+                    a=1
+            if event.Key==locals.k_s:
+                a-=0.1
+                if a<0:
+                    a=0
         if pygame.mixer.music.get_busy()==False:
             pygame.mixer.music.play()
     # 绘制画面