使用下面的代码获取附加的图像标题和alt。

//Get attachment title & alt...
$attachment_title = \'\';
$attachment_alt = \'\';

$args = array( \'post_type\' => \'attachment\', \'numberposts\' => 1, \'post_status\' => null, \'post_parent\' => $post->ID, \'post_mime_type\' => \'image\'); 
$attachments = get_posts($args);

//If attachments exist...
if($attachments) {

  //Loop until attachments...
  foreach( $attachments as $attachment ) {
    $attachment_title = $attachment->post_title;
    $attachment_alt = get_post_meta($attachment->ID, \'_wp_attachment_image_alt\', true);
  }
}