此功能允许我在购物车按钮之前的单个产品页面上显示演示Url。但我想用一个短代码在其他地方显示它。请帮我怎么做-

代码如下：

/**
* Show a Live Demo button on a single product page
*/
function isa_before_add_to_cart_form() {
    global $product;
    $url = get_post_meta( $product->get_id(), \'_isa_wc_product_demo_url\', true );
    if ( $url ) {
        echo \'<p><a href="\' . esc_url( $url ) . \'" id="livedemo" class="button primary is-shade box-shadow-3 box-shadow-5-hover" target="_blank" rel="noopener">\' .
        __( \'Live Demo\', \'textdomain\') .
        \'</a><p>\';
    }
}
add_action(\'woocommerce_before_add_to_cart_form\',\'isa_before_add_to_cart_form\');
 
/**
 * Display the Demo URL field in the Product Data metabox
 */
function isa_wc_product_add_demo_url_field() {
    echo \'<div class="options_group">\';
    woocommerce_wp_text_input( 
        array( 
            \'id\'          => \'_isa_wc_product_demo_url\',
            \'label\'       => __( \'Demo URL\', \'textdomain\' ), 
            \'placeholder\' => \'\',
            \'desc_tip\'    => \'true\',
                \'description\' => __( \'Set a URL that will be displayed on the product page to link to a demo of this product. Full URL starting with "https://"\', \'textdomain\' )
        )
    );
    echo \'</div>\';
}
add_action( \'woocommerce_product_options_general_product_data\', \'isa_wc_product_add_demo_url_field\' );
 
/**
 * Save the Demo URL field value when the produc is saved
 */
function isa_wc_product_save_demo_url_value( $post_id ) {
    $val = trim( get_post_meta( $post_id, \'_isa_wc_product_demo_url\', true ) );
    $new = sanitize_text_field( $_POST[\'_isa_wc_product_demo_url\'] );
    if ( $val != $new ) {
        update_post_meta( $post_id, \'_isa_wc_product_demo_url\', $new );
    }
}
add_action( \'woocommerce_process_product_meta\', \'isa_wc_product_save_demo_url_value\' );