// 在functions.php中添加以下代码
function create_news_flash_post_type() {
    register_post_type('news_flash',
        array(
            'labels' => array(
                'name' => __('快讯'),
                'singular_name' => __('快讯')
            ),
            'public' => true,
            'has_archive' => true,
            'supports' => array('title', 'editor')
        )
    );
}
add_action('init', 'create_news_flash_post_type');

// 添加快讯显示短代码
function news_flash_shortcode() {
    $args = array(
        'post_type' => 'news_flash',
        'posts_per_page' => 5,
        'orderby' => 'date',
        'order' => 'DESC'
    );
    
    $query = new WP_Query($args);
    $output = '
';
    
    if($query->have_posts()) {
        while($query->have_posts()) {
            $query->the_post();
            $output .= '
';
            $output .= '
' . get_the_title() . '
';
            $output .= '
' . get_the_content() . '
';
            $output .= '
';
        }
    }
    
    $output .= '
';
    wp_reset_postdata();
    
    return $output;
}
add_shortcode('news_flash', 'news_flash_shortcode');