只需将以下内容添加到函数中即可。当前主题的php文件。

<?php 

/**
 * Disable Gutenberg for supported posts.
 */
add_filter( \'use_block_editor_for_post_type\', \'__return_false\', 100 );

/**
 * Disable Gutenberg action and filter hooks.
 */
function df_disable_gutenberg_hooks() {
    remove_action( \'admin_menu\', \'gutenberg_menu\' );
    remove_action( \'admin_init\', \'gutenberg_redirect_demo\' );

    remove_filter( \'wp_refresh_nonces\', \'gutenberg_add_rest_nonce_to_heartbeat_response_headers\' );
    remove_filter( \'get_edit_post_link\', \'gutenberg_revisions_link_to_editor\' );
    remove_filter( \'wp_prepare_revision_for_js\', \'gutenberg_revisions_restore\' );

    remove_action( \'rest_api_init\', \'gutenberg_register_rest_routes\' );
    remove_action( \'rest_api_init\', \'gutenberg_add_taxonomy_visibility_field\' );
    remove_filter( \'rest_request_after_callbacks\', \'gutenberg_filter_oembed_result\' );
    remove_filter( \'registered_post_type\', \'gutenberg_register_post_prepare_functions\' );

    remove_action( \'do_meta_boxes\', \'gutenberg_meta_box_save\', 1000 );
    remove_action( \'submitpost_box\', \'gutenberg_intercept_meta_box_render\' );
    remove_action( \'submitpage_box\', \'gutenberg_intercept_meta_box_render\' );
    remove_action( \'edit_page_form\', \'gutenberg_intercept_meta_box_render\' );
    remove_action( \'edit_form_advanced\', \'gutenberg_intercept_meta_box_render\' );
    remove_filter( \'redirect_post_location\', \'gutenberg_meta_box_save_redirect\' );
    remove_filter( \'filter_gutenberg_meta_boxes\', \'gutenberg_filter_meta_boxes\' );

    remove_action( \'admin_notices\', \'gutenberg_build_files_notice\' );
    remove_filter( \'body_class\', \'gutenberg_add_responsive_body_class\' );
    remove_filter( \'admin_url\', \'gutenberg_modify_add_new_button_url\' ); // old
    remove_action( \'admin_enqueue_scripts\', \'gutenberg_check_if_classic_needs_warning_about_blocks\' );
    remove_filter( \'register_post_type_args\', \'gutenberg_filter_post_type_labels\' );

    remove_action( \'admin_init\', \'gutenberg_add_edit_link_filters\' );
    remove_action( \'admin_print_scripts-edit.php\', \'gutenberg_replace_default_add_new_button\' );
    remove_filter( \'redirect_post_location\', \'gutenberg_redirect_to_classic_editor_when_saving_posts\' );
    remove_filter( \'display_post_states\', \'gutenberg_add_gutenberg_post_state\' );
    remove_action( \'edit_form_top\', \'gutenberg_remember_classic_editor_when_saving_posts\' );
}

add_filter( \'after_setup_theme\', \'df_disable_gutenberg_hooks\' );

/**
 * Disable Gutenberg frontend scripts.
 */
function df_disable_gutenberg_wp_enqueue_scripts() {
    wp_dequeue_style( \'wp-block-library\' );
}

add_filter( \'wp_enqueue_scripts\', \'df_disable_gutenberg_wp_enqueue_scripts\', 100 );
?>