auto save

my_app.py

 import tkinter
-
+from tkinter import messagebox
+import json
+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
-    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_login=My_login()
+    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')
+    elif name in users:
+        messagebox.showwarning('错误','用户名已存在')
+    elif password1 != password2:
+        messagebox.showerror('错误','第一项和第二项不一致')
+    else:
+        users[name] =password1
+        content = json.dumps(users)
+        with open("user.txt","w",encoding="utf-8") as f:
+            info=f.write(content)
+        messagebox.showinfo('成功','注册成功')
+        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('提示','登录成功')
+    else:
+        messagebox.showwarning('错误','账号或密码不正确')
 class My_login():       # 登录窗口
     def __init__(self):
         self.root = tkinter.Tk()

user.txt

-{"admin": "123456"}
\ No newline at end of file
+{"admin": "123456", "\u7a7a\u95f4": "sss"}
\ No newline at end of file