一、开发文档
二、参考
https://www.cnblogs.com/CcPz/p/10556873.html
https://blog.csdn.net/aku13/article/details/145950306
https://blog.csdn.net/weixin_42177572/article/details/155265754
https://blog.csdn.net/aku13/article/details/145950306
https://blog.51cto.com/u_3476889/5256393
小程序端：
https://developers.weixin.qq.com/miniprogram/dev/api/payment/wx.requestPayment.html