https://github.com/paypal-examples

支付帮助

https://www.youtube.com/channel/UCvNxReTAQudFN4RQth9r_6A/videos?reload=9&app=desktop

https://github.com/orgs/paypal/repositories

REST API payment

https://www.youtube.com/watch?v=QTDEeB6xzCg

官方集成视频教学

https://developer.paypal.com/docs/checkout/standard/integrate/