# 基础支付

* **[预下单](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agent-prepay)**   
* **[关闭订单](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-partner-orders-close)**   
* **[支付结果回调通知](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agent-pay-notify)**   
* **[查询支付订单](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agent-query-order)**   
* **[申请退款](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agent-refund)**   
* **[退款结果回调通知](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agent-refund-notify)**   
* **[查询退款订单](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/payment-agentmerc-query-refund)**