auto save

.vscode/settings.json

+{
+    "python.formatting.provider": "black"
+}
\ No newline at end of file

my_app.py

@@ -25,8 +25,18 @@ def register():     # 注册验证
         messagebox.showwarning('错误','两次密码不一致！！！！！！！！')
     else:
         users[name]=password1
-def login():    # 登录验证
-    pass    
+        content=json.dumps(users)
+        with open('user.txt','w',encoding='utf-8') as file:
+            file.write(content)
+            messagebox.showinfo('成功','注册成功')
+            reg_to_login()
+def login():    # 登录验证 
+    name,password=app_login.get_input()
+    pwd=user.get(name)
+    if pwd==password:
+        messagebox.showinfo('成功','登录成功')
+    else:
+        messagebox.showwarning('错误','用户名或密码错误！！！')
 
 class My_login():       # 登录窗口
     def __init__(self):