如果您可以指望URI始终遵循相同的模式，例如。/link/###, 然后，您可以使用查询变量和重写有选择地加载不同的模板（需要刷新重写以进行测试）：

/**
 * Register a query variable to check against for loading a template. 
 *
 * @param array $vars Registered query variables.
 * @return array (Maybe) filtered list of query variables.
 */
function wpdocs_add_query_var( $vars ) {
    $vars[] = \'my-template\';
    return $vars;
}
add_filter( \'query_vars\', \'wpdocs_add_query_var\' );

/**
 * Register an endpoint using the new query variable.
 */
function wpdocs_add_rewrite_rule() {
    add_rewrite_rule( \'link/([0-9]+)?$\', \'index.php?my-template=1\', \'top\' );
}
add_action( \'init\', \'wpodcs_add_rewrite_rule\' );

/**
 * Load a template based on the presence of a query variable in the request.
 *
 * @param string $template Template file.
 * @return string (Maybe) filtered template file path.
 */
function wpdocs_load_page_template( $template ) { 
    if ( ! is_admin() ) {
        if ( get_query_var( \'my-template\' ) ) {
            $template = get_template_directory() . \'/my-template.php\';
        }
    }
    return $template;
}
add_filter( \'template_include\', \'wpdocs_load_page_template\' );