您可以使用“post\\uu not\\u in”参数。在要排除的数组中添加产品id。

$default = array(
    \'post_type\' => \'product\',
    \'post__not_in\' => array(2024),       
    \'orderby\' => \'date\',
    \'order\' => \'DESC\',
    \'post_status\' => \'publish\',
    \'showposts\' => $numberposts
);
if( $category != \'\' ){
    $term = get_term_by( \'slug\', $category, \'product_cat\' );
    if( $term ) :
        $term_name = $term->name;
    endif; 
    $default[\'tax_query\'] = array(
        array(
            \'taxonomy\'  => \'product_cat\',
            \'field\'     => \'slug\',
            \'terms\'     => $category )
    );  
}
$list = new WP_Query( $default );