Magento One step / Page Checkout 一步支付/一页支付

一步支付

https://www.iwdagency.com/extensions/one-step-page-checkout.html

添加产品跳转到支付页面

https://ecommerce.makarovsoft.com/magento-direct-add-to-cart-and-checkout-link-for-magento-2.html