是的，这很容易做到。有一个很棒的教程Misha Rudrastyh 在…上how to add Featured Images to Quick Edit. 我最近应用了它，可以确认它是有效的。您将能够在管理区帖子列表中看到特色图片，并使用快速编辑轻松更改它们。这是使用插件的一个很好的替代方法。

将以下内容复制并粘贴到functions.php 文件：

/*
*
* Add Featured Image Column to Admin Area and Quick Edit menu
* Source: https://rudrastyh.com/wordpress/quick-edit-featured-image.html
*
*/

/*
 * This action hook allows to add a new empty column
 */
add_filter(\'manage_post_posts_columns\', \'misha_featured_image_column\');
function misha_featured_image_column( $column_array ) {

    // I want to add my column at the beginning, so I use array_slice()
    // in other cases $column_array[\'featured_image\'] = \'Featured Image\' will be enough
    $column_array = array_slice( $column_array, 0, 1, true )
    + array(\'featured_image\' => \'Featured Image\') // our new column for featured images
    + array_slice( $column_array, 1, NULL, true );

    return $column_array;
}

/*
 * This hook will fill our column with data
 */
add_action(\'manage_posts_custom_column\', \'misha_render_the_column\', 10, 2);
function misha_render_the_column( $column_name, $post_id ) {

    if( $column_name == \'featured_image\' ) {

        // if there is no featured image for this post, print the placeholder
        if( has_post_thumbnail( $post_id ) ) {

            // I know about get_the_post_thumbnail() function but we need data-id attribute here
            $thumb_id = get_post_thumbnail_id( $post_id );
            echo \'<img data-id="\' . $thumb_id . \'" src="\' . wp_get_attachment_url( $thumb_id ) . \'" />\';

        } else {

            // data-id should be "-1" I will explain below
            echo \'<img data-id="-1" src="\' . get_stylesheet_directory_uri() . \'/placeholder.png" />\';

        }

    }

}

add_action( \'admin_head\', \'misha_custom_css\' );
function misha_custom_css(){

    echo \'<style>
        #featured_image{
            width:120px;
        }
        td.featured_image.column-featured_image img{
            max-width: 100%;
            height: auto;
        }

        /* some styles to make Quick Edit meny beautiful */
        #misha_featured_image .title{margin-top:10px;display:block;}
        #misha_featured_image a.misha_upload_featured_image{
            display:inline-block;
            margin:10px 0 0;
        }
        #misha_featured_image img{
            display:block;
            max-width:200px !important;
            height:auto;
        }
        #misha_featured_image .misha_remove_featured_image{
            display:none;
        }
    </style>\';

}

add_action( \'admin_enqueue_scripts\', \'misha_include_myuploadscript\' );
function misha_include_myuploadscript() {
    if ( ! did_action( \'wp_enqueue_media\' ) ) {
        wp_enqueue_media();
    }
}

add_action(\'quick_edit_custom_box\',  \'misha_add_featured_image_quick_edit\', 10, 2);
function misha_add_featured_image_quick_edit( $column_name, $post_type ) {

    // add it only if we have featured image column
    if ($column_name != \'featured_image\') return;

    // we add #misha_featured_image to use it in JavaScript in CSS
    echo \'<fieldset id="misha_featured_image" class="inline-edit-col-left">
        <div class="inline-edit-col">
            <span class="title">Featured Image</span>
            <div>
                <a href="#" class="misha_upload_featured_image">Set featured image</a>
                <input type="hidden" name="_thumbnail_id" value="" />
                <a href="#" class="misha_remove_featured_image">Remove Featured Image</a>
            </div>
        </div></fieldset>\';

        // please look at _thumbnail_id as a name attribute - I use it to skip save_post action

}

add_action(\'admin_footer\', \'misha_quick_edit_js_update\');
function misha_quick_edit_js_update() {

    global $current_screen;

    // add this JS function only if we are on all posts page
    if (($current_screen->id != \'edit-post\') || ($current_screen->post_type != \'post\'))
        return;

        ?><script>
        jQuery(function($){

            $(\'body\').on(\'click\', \'.misha_upload_featured_image\', function(e){
                e.preventDefault();
                var button = $(this),
                 custom_uploader = wp.media({
                    title: \'Set featured image\',
                    library : { type : \'image\' },
                    button: { text: \'Set featured image\' },
                }).on(\'select\', function() {
                    var attachment = custom_uploader.state().get(\'selection\').first().toJSON();
                    $(button).html(\'<img src="\' + attachment.url + \'" />\').next().val(attachment.id).parent().next().show();
                }).open();
            });

            $(\'body\').on(\'click\', \'.misha_remove_featured_image\', function(){
                $(this).hide().prev().val(\'-1\').prev().html(\'Set featured Image\');
                return false;
            });

            var $wp_inline_edit = inlineEditPost.edit;
            inlineEditPost.edit = function( id ) {
                $wp_inline_edit.apply( this, arguments );
                var $post_id = 0;
                if ( typeof( id ) == \'object\' ) { 
                    $post_id = parseInt( this.getId( id ) );
                }

                if ( $post_id > 0 ) {
                    var $edit_row = $( \'#edit-\' + $post_id ),
                            $post_row = $( \'#post-\' + $post_id ),
                            $featured_image = $( \'.column-featured_image\', $post_row ).html(),
                            $featured_image_id = $( \'.column-featured_image\', $post_row ).find(\'img\').attr(\'data-id\');


                    if( $featured_image_id != -1 ) {

                        $( \':input[name="_thumbnail_id"]\', $edit_row ).val( $featured_image_id ); // ID
                        $( \'.misha_upload_featured_image\', $edit_row ).html( $featured_image ); // image HTML
                        $( \'.misha_remove_featured_image\', $edit_row ).show(); // the remove link

                    }
                }
        }
    });
    </script>
<?php
}