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我想计算执行自适应付款的贝宝费用。我可以通过提交付款请求来获取 payKey 。在那之后,在继续进行交易之前,我想为链式支付中的每个接收者计算贝宝的费用。Paypal 确实提供了它根据交易保留的百分比,但理想情况下,我想通过 API 计算它,而不是在我的应用程序中硬编码它。
你知道哪个是 api 调用(如果有的话)吗?