diff --git a/mobile/plugins/payment/wxpay.php b/mobile/plugins/payment/wxpay.php
index 016e426..b9c101a 100755
--- a/mobile/plugins/payment/wxpay.php
+++ b/mobile/plugins/payment/wxpay.php
@@ -182,13 +182,20 @@ class wxpay
         $response_data = $new_plugin->pay($this->encrypt($_SESSION['openid']), $order['order_sn'], $order_amount);
         echo $response_data;
         // $response_data = json_decode($response_data);
+
+        // 获取微信支付需要的其他参数
         $payinfo = $response_data['payinfo'];
         $payinfo = json_decode($payinfo,true);
+        // ....实现自己的$this->getPrepayId()
+
         
+
+        // 获取prepay_id
         $package = $payinfo['package'];
         $map = [];
         parse_str($package, $map);
-        var_dump($map);
+        $prepay_id = $map['prepay_id'];
+        var_dump($prepay_id);
         // echo "payinfo: " . $payinfo;
         // var_dump($payinfo);
         // var_dump($package);