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()
@@ -14,10 +20,18 @@ def reg_to_login():   # 注册界面转登录界面
 
 def register():     # 注册验证
     name,password1,password2=app_reg.get_input()
-    print("用户输入的信息为",name,password1,password2)
-
+    if name=="" or password1=="" or password2=="":
+        messagebox.showwarning("警告","请填写完整的注册资料")
+    elif name in users:
+        messagebox.showwarning("错误","此用户名已存在")
+    elif password1!=password2:
+        messagebox.showwarning("错误","两次密码不一样")
+    else:
+        users[name]=password1
+        messagebox.showinfo("恭喜你注册成功")
+       
 def login():    # 登录验证
-    pass    
+   pass
 
 class My_login():       # 登录窗口
     def __init__(self):