save project

diy2.py

@@ -7,4 +7,9 @@ while True:
         print("登录成功!")
         break
     print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+print("欢迎来到贝尔编程!")
+if name != username:
+    print("用户名不存在，请重新输入")
+if password !=userpassword:
+    print("密码输入有误，请重新输入")
+print("欢迎来到爸爸")
\ No newline at end of file