save project

my_app.py

 import tkinter
-
+from tkinter import messagebox
+import json
+with open("user.txt","r",encoding="utf-8") as f:
+    use=f.read()
+    user=json.loads(use)
 def login_to_reg():    # 登录界面转注册界面
     app_login.root.destroy()      #关闭登录界面
     global app_reg
@@ -13,10 +17,24 @@ 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.showwarning("警告","请填写完整的用户信息")
+    elif name in user:
+        messagebox.showwarning("警告","用户名已存在")
+    elif password1!=password2:
+        messagebox.showerror("错误","请填写正确的密码")
+    else:
+        messagebox.showinfo("提示","用户注册成功，请点击取消进行登录")
+        user[name]=password1
+        with open("user.txt","w",encoding="utf-8") as q:
+            string=json.dumps(user)
+            q.write(string)
+
+
 
 def login():    # 登录验证
-    pass    
+    pass
 
 class My_login():       # 登录窗口
     def __init__(self):