save project

my_app.py

 import tkinter
-
+from tkinter import messagebox
+import json
+with open("user.txt","r",encoding='utf-8') as file:
+    into=file.read()
+    users=json.loads(into)
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()
     global app_reg
@@ -13,7 +17,16 @@ 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.showerror("警告","请完善")
+    elif name in users:
+        messagebox.showerror("警告","已存在")
+    elif password1!=password2:
+        messagebox.showerror("警告","不一致")
+    else:
+        users[name]=password1
+    
 
 def login():    # 登录验证
     pass