diff --git a/client.pyw b/client.pyw
index 4d7296a..f546bb5 100644
--- a/client.pyw
+++ b/client.pyw
@@ -1,81 +1,56 @@
 import os
-from tkinter import *
-from tkinter import ttk, messagebox
 import platform
+import tkinter as tk
+from tkinter import ttk, messagebox
 
+# Define constants
+CURRENT_DIR = os.getcwd()
+FILE_ERROR = '文件丢失，请检查文件内容并重新安装'
 
-root = Tk()
-ml = os.getcwd()
-system = platform.system()
-flie_error = '文件丢失，请检查文件内容并重新安装'
-
+# Define functions
+def open_exe(exe_name):
+    if os.path.exists(os.path.join(CURRENT_DIR, f"{exe_name}.exe")):
+        os.system(f"start {exe_name}.exe")
+    else:
+        messagebox.showerror('system', FILE_ERROR)
 
 def extkj():
-    if os.path.exists("{ml}\extkj.exe"):
-        os.system('start {ml}\extkj.exe')
-    else:
-        messagebox.showerror('system', flie_error)
-        pass
-    pass
+    open_exe("extkj")
 
 def wuguokai():
-    if os.path.exists("{ml}\wuguokai.exe"):
-        os.system("start {ml}\wuguokai.exe")
-    else:
-        messagebox.showerror('system', flie_error)
-        pass
-    pass
+    open_exe("wuguokai")
 
 def f1():
-    if os.path.exists("{ml}\\f1.exe"):
-        os.system("start {ml}\\f1.exe")
-    else:
-        messagebox.showerror('system', flie_error)
-        pass
-    pass
+    open_exe("f1")
 
 def lbb():
-    if os.path.exists("{ml}\lbb.exe"):
-        os.system("start {ml}\lbb.exe")
-    else:
-        messagebox.showerror('system', flie_error)
-        pass
-    pass
+    open_exe("lbb")
 
 def update():
-    if os.path.exists("{ml}\\update.exe"):
-        os.system("start {ml}\\update.exe")
+    if os.path.exists(os.path.join(CURRENT_DIR, "update.exe")):
+        os.system("start update.exe")
     else:
         messagebox.showerror('update', '更新日志文件丢失，请检查文件并重新安装')
-        pass
-    pass
 
 def quit_exe():
     root.destroy()
-    pass
 
+# Create GUI
+root = tk.Tk()
+root.title('chatGPT')
+root.geometry('200x200+400+400')
+tk.Label(root, text='chatGPT').pack()
 
-# button
-bt_e = Button(root ,text='extkj网站', command=extkj)
-bt_w = Button(root ,text='wuguokai网站', command=wuguokai)
-bt_f1 = Button(root, text='f1网站', command=f1)
-bt_update = Button(root, text='更新日志', command=update)
-quit_bt = Button(root, text='退出', command=quit_exe)
+bt_w = tk.Button(root, text='wuguokai网站', command=wuguokai)
+bt_e = tk.Button(root, text='extkj网站', command=extkj)
+bt_f1 = tk.Button(root, text='f1网站', command=f1)
+bt_update = tk.Button(root, text='更新日志', command=update)
+quit_bt = tk.Button(root, text='退出', command=quit_exe)
 
-
-# Label
-Label(root, text='chatGPT').pack()
-
-
-# pack_2
 bt_w.pack()
 bt_e.pack()
 bt_f1.pack()
 bt_update.pack()
 quit_bt.pack()
 
-
-# mainloop
-root.title('chatGPT')
-root.geometry('200x200+400+400')
-root.mainloop()
\ No newline at end of file
+root.mainloop()