生成一个直接跳到 ‘add to cart’ 的页面.
示例: https://www.amazon.com/gp/aws/cart/add.html?ASIN.1=B0752BLWNB&Quantity.1=1
必填字段: ASIN, 数量
生成一个购买多个产品的购买页面.
示例: https://www.amazon.com/gp/aws/cart/add.html?ASIN.1=B00SUZWGHM&Quantity.1=1&ASIN.2=B00809ERAM&Quantity.2=1
必填字段: ASIN x 2, 数量 x 2