当面付介入指南https://opendocs.alipay.com/open/194
支付宝验签https://opendocs.alipay.com/open/291/106097
支付宝在线签名、验签 https://miniu.alipay.com/keytool/sign
微信支付APIv3（签名、验签、证书下载）https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay4_0.shtml
微信支付-付款码支付V2https://pay.weixin.qq.com/wiki/doc/api/micropay.php?chapter=5_1
微信支付接口签名校验工具https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=20_1
正文完