支付宝&&银联官网

https://open.alipay.com/platform/home.htm?from=zhuzhanrukou20160818

https://merchant.unionpay.com/join/?sysPath=https%3A%2F%2Fmerchant.unionpay.com%2Fjoin

https://open.unionpay.com/ajweb/help/file/techFile?cateLog=agreement

代收业务
https://open.unionpay.com/ajweb/help?id=248

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