save project

my_music.py

@@ -17,6 +17,9 @@ while True:
         if event ==locals.QUIT :
             exit()
             
+    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