save project

my_app.py

 import tkinter
-
+from tkinter import messagebox
+import json
+with open("user.txt","r",encoding="utf-8") as f1:
+    info=f1.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
@@ -13,8 +17,16 @@ def reg_to_login():   # 注册界面转登录界面
     app_login.show()
 
 def register():     # 注册验证
-    pass
-
+    name,mima,mima2=app_reg.get_input()
+    if name==""or mima=="" or mima2=="":
+        messagebox.showwarning("错误","注册信息不完整")
+    elif name in users:
+        messagebox.showwarning("错误","用户名已存在")
+    elif mima!=mima2:
+        messagebox.showwarning("错误","两次输入的密码不一致")
+    else:
+        users[name]=mima
+        messagebox.showwarning('提示','注册成功')
 def login():    # 登录验证
     pass