save project

my_music.py

@@ -51,7 +51,7 @@ while True:
         if event.type == locals.MOUSEBUTTONDOWN:
             if event.button==1:
                 x,y=event.pos
-                if x>270 and x<370 and y>350 and y<450:
+                if x>270 and x<370 and y>350 and y<400:
                     click += 1
                     if click % 2 == 0:
                         play_button = stop_img
@@ -59,7 +59,19 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
+                if x>120 and x<220 and y>350 and y<400:   #上一曲
+                    num-=1
+                    if num < 0:
+                        num=len(laijdo)-1
+                    pygame.mixer.music.load(pa+"\\"+laijdo[num])
+                    pygame.mixer.music.play()
 
+                if x>420 and x<520 and y>350 and y<400:   #下一曲
+                    num+=1
+                    if num > len(laijdo)-1:
+                        num=0
+                    pygame.mixer.music.load(pa+"\\"+laijdo[num])
+                    pygame.mixer.music.play()
     if pygame.mixer.music.get_busy() == False:
         num+=1
         if num>len(laijdo)-1: