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()
+    user = json.loads(info)
 
 def login_to_reg():    
     app_login.root.destory()
@@ -6,17 +11,36 @@ def login_to_reg():
     app_reg = My_register()
     app_reg.show()
 
-def reg_to_login():   # 注册界面转登录界面
+def reg_to_login():   
     app_reg.root.destory()
-    global login_reg
-    login_reg = My_register()
-    login_reg.show()
+    global app_login
+    app_login = My_login()
+    app_reg.show()
+
+def register():     
+    name,password1,password2 = app_reg.get_input()
+    if name =="" or password1=="" or password2=="":
+        messagebox.showwarning("警告", "请填写完整注册资料")
+    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
+        content=json.dumps(users)
+        with open("user.txt","w",encoding="utf-8")as file:
+            file.write(content)
+        messagebox.shoinfo("注册成功")
+        longin
 
-def register():     # 注册验证
-    pass
+def login():    
+    name,password=app_login.get_input()
+    pwd = users[name]
+    if pwd == password:
+        messagebox.showinfo("成功", "登录成功")
+    else:
+        messagebox.showwarning("错误", "用户名或密码错误！")
         
-def login():    # 登录验证
-    pass    
 
 class My_login():       # 登录窗口
     def __init__(self):