Can’t select database
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?
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 setup a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.
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wp-config.php
內容
<?php
// ** MySQL settings ** //
define('DB_NAME', 'wordpress'); // The name of the database
define('DB_USER', 'wp'); // Your MySQL username
define('DB_PASSWORD', '19234902'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
// You can have multiple installations in one database if you give each a unique pref$
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!