diff --git a/WeMini/Scheme.php b/WeMini/Scheme.php
index 2d41fb62ac4b2c46daa7af3cba0013b8e8420c8b..91cba8bff0a1d56eaebe973973494d2b75fcc5a2 100644
--- a/WeMini/Scheme.php
+++ b/WeMini/Scheme.php
@@ -77,4 +77,16 @@ class Scheme extends BasicWeChat
         $url = 'https://api.weixin.qq.com/wxa/query_urllink?access_token=ACCESS_TOKEN';
         return $this->callPostApi($url, ['url_link' => $urllink], true);
     }
-}
\ No newline at end of file
+    /**
+     * 创建 Short-Link
+     * @param array $data
+     * @return array
+     * @throws \WeChat\Exceptions\InvalidResponseException
+     * @throws \WeChat\Exceptions\LocalCacheException
+     */
+    public function shortLink($data)
+    {
+        $url = "https://api.weixin.qq.com/wxa/genwxashortlink?access_token=ACCESS_TOKEN";
+        return $this->callPostApi($url, $data, true);
+    }
+}
diff --git a/WePay/Order.php b/WePay/Order.php
index 91cb1953d9c9aa879735cb4d83b0b422139a4fef..5040acb7d618b75f0195001bb85f6b71a7ec20ba 100644
--- a/WePay/Order.php
+++ b/WePay/Order.php
@@ -87,7 +87,7 @@ class Order extends BasicWePay
     public function jsapiParams($prepayId)
     {
         $option = [];
-        $option["appId"] = $this->config->get('appid');
+        $option["appId"] = $this->config->get('sub_appid') ? $this->config->get('sub_appid') : $this->config->get('appid');
         $option["timeStamp"] = (string)time();
         $option["nonceStr"] = Tools::createNoncestr();
         $option["package"] = "prepay_id={$prepayId}";
@@ -172,4 +172,4 @@ class Order extends BasicWePay
         $url = 'https://api.mch.weixin.qq.com/payitil/report';
         return $this->callPostApi($url, $options);
     }
-}
\ No newline at end of file
+}