更改支付接口app支付方式

go/gopath/src/fohow.com/libs/wx_mp/pay.go

@@ -159,6 +159,7 @@ func GetAppPayData(outTradeNo string, totalPrice int64, body, notifyUrl, remoteI
 	nonce_str := strings.Join(us, "")
 	ret = map[string]string{
 		"appId":     appId,
+		"partnerId": outTradeNo,
 		"timeStamp": fmt.Sprintf("%d", time.Now().Unix()),
 		"package":   fmt.Sprintf("prepay_id=%s", prepayId),
 		"signType":  "MD5",