如何调试

$debug_on，includes/modules/debug_blocks/目录下
product_info_prices.php调试价格，需取消tpl_product_info_display.php模板中的//require(DIR_WS_MODULES . '/debug_blocks/product_info_prices.php');注释
shopping_cart_contents.php调试购物车，需取消pages/shopping_cart/header.php里的// require(DIR_WS_MODULES . 'debug_blocks/shopping_cart_contents.php');注释