save project

my_music.py

@@ -58,13 +58,23 @@ while True:
                 else:
                     play_button = play_img
                     pygame.mixer.music.pause()
+            if x>120 and x<220 and y>350 and y<400:
+                num-=1
+                if num<0:
+                    num=len(music_list)-1
+                pygame.mixer.music.load(path+"\\"+music_list[num])    
+                pygame.mixer.music.play()
+                play_button=stop_img
+                click=0
+                if x>420 and x<520 and y>350 and y<400:
+                num+=1
+                if num<0:
+                    num=len(music_list)-1
+                pygame.mixer.music.load(path+"\\"+music_list[num])    
+                pygame.mixer.music.play()
+                play_button=stop_img
+                click=0
 
-    if pygame.mixer.music.get_busy() == False:
-        mun+=1
-        if num>len(filelist)-1:
-            mun=0
-        pygame.mixer.music.load(path+"\\"+music_list[num])    
-        pygame.mixer.music.play()
 
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景