优化用户体验，修复已知问题

NFLmusic.py

@@ -80,6 +80,21 @@ def save_jsondata():
         f.write(json.dumps(jsondata))
 
 
+def detect_change():
+    global changed
+    if (
+        jsondata["language"] != var5.get() or
+        jsondata["choice"] != repo_dict[var4.get()] or
+        jsondata["auto_update"] != var3.get() or
+        jsondata["auto_play"] != var6.get() or
+        jsondata["theme"] != tmla.get(la)[var1.get()] or
+        jsondata["path"] != var2.get()
+    ):
+
+        changed = True
+
+
+
 def display(window, msg, ltime=3):
     a = Label(window, text=msg)
     a.place(relx=0.5, rely=0.9, anchor="center")
@@ -433,7 +448,9 @@ def open_file_dialog():
 
 
 def settings():
-    global page
+    global page, changed
+    detect_change()
+    if changed:
         response = tkinter.messagebox.askyesnocancel(lang.get(la, "mbox.title.save_settings"),
                                                      lang.get(la, "mbox.text.save_settings", ))
         if response is not None:
@@ -462,6 +479,15 @@ def settings():
                 var6.set(auto_play)
         else:
             pass
+    else:
+        page = will_page
+        if page == "homepage":
+            ExchangeGUI.home_page()
+        elif page == "about":
+            ExchangeGUI.about()
+        elif page == "versions":
+            ExchangeGUI.versions()
+    changed = False
 
 
 class joke:
@@ -1121,7 +1147,7 @@ def download_version():
         copy(version_json[get_treeview_index(version_list, version_download_choice)]["password"])
 
 
-version = "4.0.5"
+version = "4.0.6"
 poem = ""
 appdata = os.getenv("APPDATA")
 make_resource()
@@ -1197,6 +1223,7 @@ var5.set(la)
 var6 = BooleanVar()
 var6.set(auto_play)
 isJoking = False
+changed = False
 player = None
 OptionMenu = ttk.OptionMenu
 Button = ttk.Button