save project

diy2.py

@@ -4,7 +4,11 @@ while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
+        
         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
+    if name!=username:
+        print('输入的账号有误')
+    if password!=userpassword:
+        print('输入密码错误')
+print("欢迎来到贝尔编程")