auto save

my_app.py

@@ -23,7 +23,7 @@ def register():     # 注册验证
     if name == "" or password1=="" or password2=="":
         messagebox.showwarning("警告","请填写完整的注册资料") 
     elif name in users:
-        messagebox.showwarning("错误","用户名已存在!")
+        messagebox.showwarning("错误","用户名已存在!")1
     elif password1 != password2:
         messagebox.showwarning("错误","两次密码不一致!")
     else: