将opencart的订单同步到dianxiaomi方便处理订单，订单发货提交后将跟踪号码同步到opencart,并写入订单历史记录中的订单附言。
Synchronizing OpenCart orders to Dianxiaomi facilitates order processing. After an order is shipped and submitted, the tracking number is synchronized to OpenCart and written to the order history as an order note.