auto save

my_app.py

 import tkinter
+import json
+from tkinter import messagebox
+#读取user这个txt文件中的数据
+with open('user.txt','r',encoding = 'utf-8') as f:
+    info = f.read()#读取进来后是字符串类型
+    users = json.loads(info)
 
 def login_to_reg():    # 登录界面转注册界面
-    pass
-
+    #关掉登录界面
+    app_login.root.destroy()
+    global app_reg
+    #实例化一个注册界面
+    app_reg = My_register()
+    #显示该窗口的所有内容
+    app_reg.show()
 def reg_to_login():   # 注册界面转登录界面
     pass
 
 def register():     # 注册验证
-    pass
-
+    #先获得账号，密码，确认密码
+    name,password1,password2 = app_reg.get_input()
+    if name == "" or password1 == "" or password2 =="":
+        messagebox.showwarning('警告','注册信息不为空')
+    elif password1 != password2:
+        messagebox.showwarning('警告','两次密码不一致，请确认')
+    elif name in users:
+        messagebox.showwarning('警告','该账号已被注册')
+    else:
+        #将注册信息写入到user.txt中
+        users[name] = password1
+        #转换成字符串
+        s1 = json.dumps(users)
+        with open('user.txt','w',encoding='utf-8') as f:
+            f.write(s1)
 def login():    # 登录验证
-    pass    
-
+    name,password = app_login.get_input() 
+    pwd = users.get(name)
+    if pwd == password:
+        messagebox.showinfo('正确','登录成功')
+    else:
+        messagebox.showerror('错误','登录失败')
 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", "123": "23"}
\ No newline at end of file