save project

my_app.py

 import tkinter
 from tkinter import messagebox
+import json
+
+with open("user.txt",'r',encoding='utf-8')as f:
+    info = f.read()
+    users = json.loads(info)
 
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()