# uri，切记不可带参数，即去掉"?"及后面的部分

# 如果是基础库的wx.requestCommonPayment，uri固定为requestCommonPayment

uri = '/retail/B2b/getorder'

uri = '/retail/B2b/getorder' 是否要改成 uri = 'requestCommonPayment'

https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/order_center/order_center.html