save project

my_app.py

 import tkinter
 from tkinter import messagebox
+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()
     global app_reg
@@ -18,7 +21,7 @@ def register():     # 注册验证
         messagebox.showwarning("警告","请填写完整的注册资料")
     elif name in users:
         messagebox.showwarning("错误","用户已存在")
-    elif password1 != password2
+    elif password1 != password2:
         messagebox.showwarning("错误","两次密码不一致")
     else:
         user[name]=password1