save project

my_app.py

 import tkinter
 
+with open('user.txt',r,encoding='utf-8') as user:
+    info = f.read()
+    users = json.loads(info)
+
 def login_to_reg():    # 登录界面转注册界面
-    pass
+    app_login.root.destroy()
+    global app_reg
+    app_reg = My_register()
+    app_reg.show()
 
 def reg_to_login():   # 注册界面转登录界面
-    pass
+    app_reg.root.destroy()
+    global app_login
+    app_reg = My_login()
+    app_reg.show()
 
 def register():     # 注册验证
-    pass
+    name,password1,password2 = app_reg.get_input()
+    if name == '' or password1 == '' or password2 == '':
+        massagebox.showwarning('警告',"请填写完整的注册资料。")
+    elif name in users:
+        massagebox.showwarning('错误','用户名已经存在。')
+    elif password1 != password2:
+        massagebox.showwarning('错误',"两次密码不相同。")
+    else:
+        users[name] = password1
+        content = json.dumps(users)
+        with open('user.txt','w',encoding='utf-8') as file:
+            file.write(content)
+        massagebox.showinfo("成功","注册成功！")
+        login_show()
 
 def login():    # 登录验证
-    pass    
+    if 
 
 class My_login():       # 登录窗口
     def __init__(self):