This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at localhost .这要么意味着用户名和密码资料，在你的可湿性粉剂- config.php文件是不正确或不能接触数据库服务器，在本地主机 。 This could mean your host's database server is down.这可能意味着你的主机的数据库服务器。
If you're unsure what these terms mean you should probably contact your host.如果你不确定这些名词的含义，你应该可能接触你的主机。 If you still need help you can always visit the如果您仍然需要帮助您可以随时访问 WordPress Support Forums在WordPress支持论坛 . 。