WordPress后台添加操作指引

add_action( 'admin_enqueue_scripts', 'my_admin_enqueue_scripts' );
function my_admin_enqueue_scripts() {
    wp_enqueue_style( 'wp-pointer' );
    wp_enqueue_script( 'wp-pointer' );
    add_action( 'admin_print_footer_scripts', 'my_admin_print_footer_scripts' );
}
function my_admin_print_footer_scripts() {
    $pointer_content = '<h3>云落的通知</h3>';
    $pointer_content .= '<p>这是一个通知</p>';
    ?>
           <script type="text/javascript">
           //<![CDATA[
    jQuery(document).ready( function($) {
        $('#menu-appearance').pointer( {
            content: '<?php echo $pointer_content; ?>',
                        position: 'left',
                        close: function() {
                // Once the close button is hit
            }
        }
        ).pointer('open');
    }
    );
    //]]>
    </script>
        <?php
}