Connect(0) to MySQL (localhost,blog) failed

The URL Is:
http://www.huanqiu.com/blog/article.php?uid=181&do=showone&itemid=2024&type=blog

MySQL Server Error:
Access denied for user 'blog'@'localhost' (using password: YES) ( 1045 )

You Can Get Help In:
http://www.phpwind.net