save project

my_app.py

 import tkinter
 
-def login_to_reg():    # 登录界面转注册界面
-    pass
+def login_to_reg():
+    app_login.root.deiconify()
+        global app_reg
+        app_reg = My_register()
+        app_reg.show()
 
-def reg_to_login():   # 注册界面转登录界面
-    pass
+def reg_to_login():
+    name,pass,password2 = app_reg.get_input()
+    app_reg.root.deiconify()
+        global app_login
+        app_login = My_register()
+        app_login.show()   
 
 def register():     # 注册验证
-    pass
+    name,password1,password2 = app_reg.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
+        content = json.dumsp(users)
+        with open("user.txt","w",encoding="utf-8") as file:
+            file.write(content)
+            messagebox.showinfo("成功","注册成功")
+            login_show()
 
 def login():    # 登录验证
     pass