save project

my_music.py

@@ -26,6 +26,9 @@ while True:
             exit()
         # 按键，控制声音大小
         if event.type == locals.KEYDOWN:
+            if event.botton==1:
+                x,y=event.pos
+                if x>270 and x<370 and y>330 and y<430:
                     if event.key == locals.K_UP:
                         volume += 0.1
                         if volume > 1: