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()
     global app_reg
@@ -11,8 +16,16 @@ def reg_to_login():   # 注册界面转登录界面
     app_login=My_login()
     app_login.show()
 def register():     # 注册验证
-    pass
-
+    name,password1,password2 = app_reg.get_input()
+    if name == ""or password1 == "" or password2 == "":
+        messagebox.showwarning("警告！","警告！")
+    elif name in users:
+        messagebox.showerror("")
+    elif password1 != password2:
+        messagebox.showerror("")
+    else:
+         messagebox.showinfo("")
+         users[name] = password1   
 def login():    # 登录验证
     pass