save project

my_music.py

@@ -59,6 +59,18 @@ while True:
         num += 1
         if num > len(music_list):
             num = 0
+        if x > 120 and x < 220 and y > 350 and y< 450:
+            num -= 1
+            if num < len(music_list):
+                num = len(music_list)-1
+                click = 0
+                play_button = stop_img
+        if x > 320 and x < 420 and y > 350 and y < 450:
+            num += 1
+            if num > len(music_list):
+                num = 0
+                click = 0
+                play_button = stop_img
         pygame.mixer.music.load(path+"\\"+music_list[num])
         pygame.mixer.music.play()
 
@@ -70,3 +82,5 @@ while True:
     screen.blit(next_img, (420, 350))   # 下一曲
     # 刷新画面
     pygame.display.update()
+
+if x>120 and x<220 and y>350 and y<450
\ No newline at end of file