save project

my_app.py

 import tkinter
+from tkinter import messagebox
+import json
 
-def login_to_reg():    # 登录界面转注册界面
-    pass
+with open("user.txt","r",encoding="utf-8")as f:
+    info=f.read()
+    users=json.loads(info)
 
-def reg_to_login():   # 注册界面转登录界面
-    pass
 
-def register():     # 注册验证
-    pass
 
+def login_to_reg():    # 登录界面转注册界面
+    app_login.root.destroy()
+    global app_reg
+    app_reg=My_register()
+    app_reg.show()
+    
+def reg_to_login():
+    app_reg.root.destroy()
+    global app_login
+    app_login=My_login() 
+    app_login.show() # 注册界面转登录界面
+    
+def register():     # 注册验证
+    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("警告！","用户名已存在")
+    elif password1 != password2:
+        messagebox.showwarning("警告！","密码错误")
+    else:
+        users[name]=password1
+        content=json.dumps(users)
+        with open("user.txt","w",encoding="utf-8")as file:
+            file.write(content)
+        messagebox.showinfo("成功")
+        reg_to_login()
+    
 def login():    # 登录验证
-    pass    
+    name,password=app_login.get_input()
+    pwd=users.get(name)
+    if pwd==password:
+        messagebox.showinfo("成功")
+    else:
+        messagebox.showwarning("错误")    
 
 class My_login():       # 登录窗口
     def __init__(self):

user.txt

-{"admin": "123456"}
\ No newline at end of file
+{"admin": "123456", "wwq": "11", "wp": "13", "sb": "1111", "p": "1", "\u4ed6": "\u4ed6"}
\ No newline at end of file