如何通过php编程为wordpress创建作者？

Is there anyone who has the idea that how to create authors for wordpress by php programmatically?

Try this

$user_id = username_exists( $user_name );
if ( !$user_id and email_exists($user_email) == false ) {
    $random_password = wp_generate_password( $length=12, $include_standard_special_chars=false );
    $user_id = wp_create_user( $user_name, $random_password, $user_email );
    wp_update_user(array(
        'ID' => $user_id,
        'role' => 'Author'
    ));
} else {
    $random_password = __('User already exists.');
}