save project

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
     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_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","请填写完整的注册信息")
+    elif name ==""in users:
+        messagebox.showwarning('错误',"用户名已存在")
+    elif password1 != password2:
+        messagebox.showwarning('错误','两次密码不一致')
+    else:
+        users[name] = password1
+        content = json.dumps(users)
+        with open('user,txt','w',encoding="utf-8") as f:
+            file.write(callable())
 
 def login():    # 登录验证
-    pass    
-
+    name,users.get(name)
+    if pwd == password:
+        messagebox.showinfo('成功','登录成功')
+    else:
+        messagebox.showinfo('错误','用户名或密码错误')
 class My_login():       # 登录窗口
     def __init__(self):
         self.root = tkinter.Tk()