save project

my_app.py

 import tkinter
 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
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()
     app_login.root.destroy()
     global app_reg
     global app_reg
@@ -12,8 +16,15 @@ def reg_to_login():   # 注册界面转登录界面
     app_login.show()
     app_login.show()
 
 
 def register():     # 注册验证
 def register():     # 注册验证
-    
-
+    name,password1,password2=app_reg.get_input()
+    if name=="" or password1=="" or password2=="":
+        messagebox.showwarning("警告","请填写完整的信息")
+    elif password2 != password1:
+        messagebox.showwarning("警告","两次密码不一致")
+    elif name in users:
+        messagebox.showwarning("警告","用户名已存在")
+    else:
+        users[name]=password1
 def login():    # 登录验证
 def login():    # 登录验证
     pass    
     pass