save project

my_app.py

 import tkinter
+from tkinter import messagebox
+import json
 
-def login_to_reg():    # 登录界面转注册界面
-    pass
 
+with open("user.txt","r",encoding="utf-8") as f:
+    info=f.read()
+    users=json.loads(info)
+def login_to_reg():    # 登录界面转注册界面
+    app_login.root.destroy()
+    global app_reg
+    app_reg=My_register()
+    app_reg.show()
 def reg_to_login():   # 注册界面转登录界面
-    pass
+    app_reg.root.destroy()
+    global app_login
+    app_login=My_login()
+    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","不能为空")
+    elif name in users:
+        messagebox.showwarning("错误","已存在")
+    elif password1!=password2:
+        messagebox.showwarning("错误","密码不一样")
+    else:
+        users[name]=password1
+        content=json.dumps(users)
+        with open("user.txt","w",encoding="utf-8") as file:
+            file.write(content)
+        messagebox.showinfo("成功","成功")
+        reg_to_login()    
+
 
 def login():    # 登录验证
     pass    
@@ -102,6 +127,6 @@ class My_register():        # 注册窗口
         self.password1 = self.e2.get()
         self.password2 = self.e3.get()
         return self.name, self.password1, self.password2
-+
+
 app_login = My_login()
-app_login.show()
\ No newline at end of file
+app_login.show()

user.txt

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