save project

my_app.py

 import tkinter
 
+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
@@ -13,8 +16,13 @@ def reg_to_login():   # 注册界面转登录界面
    app_reg.show()
 
 def register():     # 注册验证
-    
-
+    name,password1,password2 = app_reg.get_input() 
+    if name ==""or password1==""or password2=="":
+        messagebox.showwarning("")
+    elif name in users:
+        messagebox.showwarning("")
+    elif password1 != password2:
+        messagebox.showwarning("")
 def login():    # 登录验证