当我wordpress安装进行到第二步的时候会报如下wordpress安装错误：

We were able to connect to the database server (which means your username and password is okay) but not able to select the wordpress database.
Are you sure it exists?
Does the user root have permission to use the wordpress database?
On some systems the name of your database is prefixed with your username, so it would be like username_wordpress. Could that be the problem?

If you don’t know how to set up a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.

手动新建数据库wordpress或者wordpress5.4.1都不行，

最后改了个名字wp，安装成功了。