auto save

my_app.py

 import tkinter,json
-with open('user.txt','r',encoding='utf-8')as f:
-    users=json.loads(f.read())
+with open('user.txt','r',encoding='utf-8')as f:users=json.loads(f.read())
 from tkinter import messagebox
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()
@@ -14,18 +13,16 @@ def reg_to_login():   # 注册界面转登录界面
     app_login.show()
 def register():     # 注册验证
     a,b,c=app_reg.get_input()
-    if a==''or b==''or c=='':messagebox.showwarning('Warning','The info is not completed!')
+    if a==''or b==''or c=='':messagebox.showwarning('Warning','The info is not compeleted!')
     elif a in users:messagebox.showerror('Error','The username is existed!')
     elif b!=c:messagebox.showerror('Error','The passwords is not fited!')
     else:
-        messagebox.showinfo('Successed','The register is completed.')
+        messagebox
         users[a]=b
-        with open('user.txt','w',encoding='utf-8')as f:f.write(json.dumps(users))
-        reg_to_login()
-def login():
-    a,b=get_input()    # 登录验证
-    if a in users.get()and users[a]==b:messagebox.showinfo('Successed','The login is completed.')   
-    else:messagebox.showerror('Error','The username or password is not right.')
+def login():    # 登录验证
+    a,b=get_input()
+    if     
+
 class My_login():       # 登录窗口
     def __init__(self):
         self.root = tkinter.Tk()

user.txt

-{'a':'1'}
\ No newline at end of file
+{"admin": "123456"}
\ No newline at end of file