diff --git a/extend/weChat/certs/1659662936/apiclient_cert.p12 b/extend/weChat/certs/1659662936/apiclient_cert.p12
new file mode 100644
index 0000000..1398295
Binary files /dev/null and b/extend/weChat/certs/1659662936/apiclient_cert.p12 differ
diff --git a/extend/weChat/certs/1659662936/apiclient_cert.pem b/extend/weChat/certs/1659662936/apiclient_cert.pem
new file mode 100644
index 0000000..514b2af
--- /dev/null
+++ b/extend/weChat/certs/1659662936/apiclient_cert.pem
@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/extend/weChat/certs/1659662936/apiclient_key.pem b/extend/weChat/certs/1659662936/apiclient_key.pem
new file mode 100644
index 0000000..0a65bca
--- /dev/null
+++ b/extend/weChat/certs/1659662936/apiclient_key.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/extend/weChat/certs/1659662936/wechatpay_5B5C8A69CC86D1127F6B6AA06AAAF10531EEFE90.pem b/extend/weChat/certs/1659662936/wechatpay_5B5C8A69CC86D1127F6B6AA06AAAF10531EEFE90.pem
new file mode 100644
index 0000000..290c3c2
--- /dev/null
+++ b/extend/weChat/certs/1659662936/wechatpay_5B5C8A69CC86D1127F6B6AA06AAAF10531EEFE90.pem
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----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+QptFAgMBAAGjgbkwgbYwCQYDVR0TBAIwADALBgNVHQ8EBAMCA/gwgZsGA1UdHwSB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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/extend/weChat/weChatPay.go b/extend/weChat/weChatPay.go
index d3a4d8f..e67ed6a 100644
--- a/extend/weChat/weChatPay.go
+++ b/extend/weChat/weChatPay.go
@@ -8,7 +8,6 @@ import (
 	"github.com/wechatpay-apiv3/wechatpay-go/services/refunddomestic"
 	"github.com/wechatpay-apiv3/wechatpay-go/utils"
 	"hospital-admin-api/config"
-	"path/filepath"
 )
 
 type RefundRequest struct {
@@ -21,9 +20,25 @@ type RefundRequest struct {
 }
 
 // Refund 退款
-func (r RefundRequest) Refund() (*refunddomestic.Refund, error) {
+func (r RefundRequest) Refund(orderType int) (*refunddomestic.Refund, error) {
+	mchId := ""
+
+	if orderType == 1 {
+		// 问诊
+		mchId = "1659662936"
+	} else if orderType == 2 || orderType == 3 {
+		// 药品/检测
+		mchId = "1636644248"
+	}
+
+	if mchId == "" {
+		return nil, errors.New("商户号错误")
+	}
+
+	certsDir := "extend/weChat/certs/" + mchId + "/apiclient_key.pem"
+
 	// 使用 utils 提供的函数从本地文件中加载商户私钥，商户私钥会用来生成请求的签名
-	certsDir := filepath.Join("extend/weChat/certs", "/1636644248/apiclient_key.pem")
+	// certsDir := filepath.Join("extend/weChat/certs", "/1636644248/apiclient_key.pem")
 	mchPrivateKey, err := utils.LoadPrivateKeyWithPath(certsDir)
 	if err != nil {
 		return nil, errors.New("微信签名生成失败")