https://developers.weixin.qq.com/doc/channels/API/order/get.htmlhttps://developers.weixin.qq.com/doc/channels/API/order/get.htmlhttps://developers.weixin.qq.com/doc/channels/API/order/get.html

ExtInfo里面的finder_id和CommissionInfo中的finder_id有什么区别，分别在什么情况下有值