save project

my_app.py

 import tkinter
 from tkinter import messagebox as mess
+import json
+
+with open(r'user.txt','r',encoding='utf-8') as f:
+    info=f.read()
+    print(info)
+    user=json.loads(info)
 
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()
@@ -17,16 +23,27 @@ def register():     # 注册验证
     name,password1,password2=app_reg.get_input()
     if password1 != '' and name != '' and not ' ' in password1 and not ' ' in name:
         if password1==password2:
-            mess.showinfo('注册成功'+'用户名:'+name+'\n','密码:'+password1)
-            print('密码:'+password1)
+            if not name in user:
+                user[name]=password1
+                content=json.dumps(user)
+                with open('user.txt','w',encoding='utf-8') as fi:
+                    fi.write(content)
+                mess.showinfo('注册成功'+'用户名:'+name+'\n','密码:'+password1)
+            else:
+                mess.showerror('错误','用户名已存在')
         else:
             mess.showerror('错误','您两次输入的密码不一致')
     else:
         mess.showerror('错误','密码或用户名不能为空')
 
 def login():    # 登录验证
-    pass    
-
+    name,key=app_login.get_input()    
+    if not name in user:
+        mess.showerror('错误','用户不存在')
+    elif user[name]!=key:
+        mess.showerror('错误','密码不正确')
+    else:
+        mess.showinfo('提示','登录成功')
 class My_login():       # 登录窗口
     def __init__(self):
         self.root = tkinter.Tk()

user.txt

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