save project

my_music.py

-
-
 import os
 
 
@@ -52,7 +50,20 @@ while True:
                 else:
                     p=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(path+'\\'music-list)-1
+                        click=0
+                        play_img=stop_img
+                        pygame.mixer.music.play()
+                if x>120 and x<220 and y>350 and y<400:
+                    num+=1
+                    if num<0:
+                        num=len(path+'\\'music-list)+1
+                        click=0
+                        play_img=stop_img
+                        pygame.mixer.music.play()
                 
             
             
@@ -70,8 +81,6 @@ while True:
                     sw=0
                 pygame.mixer.music.set_volume(sw)  
     if pygame.mixer.music.get_busy() ==False:
-     
-    
         num+=1
         if num>len(t)-1:
             num=0
@@ -82,14 +91,6 @@ while True:
         sw+=0.1
         if sw>1:
             sw=1
-
-
-
-
-
-
-
-
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(p, (270, 330))   # 暂停按钮