将以下内容添加到主题的函数中。php文件将允许您使用短代码（[wpse73055-random-images] ) 带有可选num 参数（即。[wpse73055-random-images num=5] 显示5个随机图像）。

function wpse73055_get_random_images( $atts ) {
    extract( shortcode_atts( array(
        \'num\' => 10
    ), $atts ) );

    $args = array(
        \'post_type\' => \'attachment\',
        \'post_mime_type\' =>\'image\',
        \'post_status\' => \'inherit\',
        \'posts_per_page\' => $num,
        \'orderby\' => \'rand\'
    );
    $images_query = new WP_Query( $args );

    $images = $images_query->posts;

    $output = \'<ul>\';
    foreach ( $images as $image ) {
        $output .= \'<li>\' . wp_get_attachment_link( $image->ID ) . \'</li>\';
    }
    $output .= \'</ul>\';

    return $output;
}
add_shortcode( \'wpse73055-random-images\', \'wpse73055_get_random_images\' );

• wp_get_attachment_link
• WP_Query
• add_shortcode