auto save

diy2.py

@@ -6,7 +6,8 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name != username and password != userpassword:
+    if name != username  :
             print("用户名错误!请重新输入")
+    if password != userpassword:
             print("密码错误!请重新输入")
 print("欢迎来到贝尔编程!")