save project

my_app.py

 import tkinter
+from tkinter import messagebox
+import json
+
+with open('user.txt','r',encoding='UTF-8') as f:
+    ax=f.read()
+    m=json.loads(ax)
 
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()
@@ -13,7 +19,20 @@ def reg_to_login():   # 注册界面转登录界面
   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','信息不能为空')
+    elif name in m:
+        messagebox.showerror('错误','此用户名已存在')
+    elif password1 != password2:
+        messagebox.showerror('错误','两次密码不一致')
+    else:
+        m[name] = password1
+        m1=json.dumps(m)
+        with open('user.txt','w',encoding='UTF-8') as f1:
+            f1.write(m1)
+        messagebox.showinfo('信息','已注册成功')
+
 
 def login():    # 登录验证
     pass    

user.txt

-{"admin": "123456"}
\ No newline at end of file
+{"asd": "123"}
\ No newline at end of file