功能： 1、实现多产品上线， 2、不用注册也可以直接下单购买， 3、集成目前主流支付接口， 4、下单发货均有邮件提醒。-Function: 1, the realization of multi product line, 2, can also directly purchase orders without registration, 3, integrate the current mainstream payment interface, 4, all o