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()
@@ -11,7 +15,15 @@ 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_rey.get_input()
+    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","用户名已经存在")
+    elif password1 != password2:
+        messagebox.showwarning("错误","两次密码不一致")
+    else:
+        users[name]=password1
 
 def login():    # 登录验证
     pass