有关帖子格式，请参考此链接https://codex.wordpress.org/Post_Formats

要在帖子页面上显示视频，只需修改摘录过滤器并显示摘录即可。

Add following code in functions.php

function custom_wp_trim_excerpt($text) {
    $raw_excerpt = $text;
    if ( \'\' == $text ) {
        $text = get_the_content(\'\'); // Original Content
        $text = strip_shortcodes($text); // Minus Shortcodes
        $text = apply_filters(\'the_content\', $text); // Filters
        $text = str_replace(\']]>\', \']]>\', $text); // Replace
        $excerpt_length = apply_filters(\'excerpt_length\', 50); // Length
        $excerpt_more = apply_filters(\'excerpt_more\', \' \' . \'<a class="readmore" href="\'. get_permalink() .\'">&raquo;</a>\');
        $text = wp_trim_words( $text, $excerpt_length, $excerpt_more );
        // Use First Video as Excerpt
        $postcustom = get_post_custom_keys();
        global $post; 
        $postid = $post->ID;
        if ($postcustom){
            $i = 1;
            foreach ($postcustom as $key){
            if (strpos($key,\'oembed\')){
                foreach (get_post_custom_values($key) as $video){
                    if ($i == 1){
                        $text = $video."<br/>".$text;
                    }
                    $i++;
                }
            }
        }
    }
}
return apply_filters(\'wp_trim_excerpt\', $text, $raw_excerpt);
}
remove_filter(\'get_the_excerpt\', \'wp_trim_excerpt\');
add_filter(\'get_the_excerpt\', \'custom_wp_trim_excerpt\');

Put the excerpt tag where you want to display the video.

echo get_the_excerpt();

Add video URL in post content (visual editor) and it will display video in excerpt also.