save project

my_app.py

+import json
 import tkinter
-import 
-
+from tkinter import messagebox
+with open("user.txt","r",encoding="utf-8") as f:
+    info = f.read()
+    users = json.loads(info)
 
 
 
@@ -17,8 +20,15 @@ def reg_to_login():   # 注册界面转登录界面
     app_login.show()
 
 def register():     # 注册验证
-    name,
-
+    name,password1,password2 = app_reg.get_input()
+    if name == '' or password1 == '' or password2 == '':
+        messagebox.showwarning("警告","用户名或密码不能为空")
+    elif name in users:
+        messagebox.showinfo("提示","用户名已存在")
+    elif password1 != password2:
+        messagebox.showerror("错误","密码的内容不一致")
+    else:
+        users[name] = password1
 def login():    # 登录验证
     pass