diff --git a/webapp/controller/KefuController.class.php b/webapp/controller/KefuController.class.php
index dda56bc..e42d80c 100644
--- a/webapp/controller/KefuController.class.php
+++ b/webapp/controller/KefuController.class.php
@@ -464,15 +464,13 @@ class KefuController {
     private function responseMsg()
     {
         $postStr_key = $GLOBALS["HTTP_RAW_POST_DATA"];
-        $pc = new WXBizMsgCrypt(WEIXIN_TOKEN, WEIXIN_MSG_KEY, WEIXIN_APP_ID);
         $gameid = $_REQUEST['gameid'];
-
-        $msg = '';
         $msg_sign = $_REQUEST['msg_signature'];
         $timeStamp = $_REQUEST['timestamp'];
         $nonce = $_REQUEST['nonce'];
+
+        $pc = new WXBizMsgCrypt(WEIXIN_TOKEN, WEIXIN_MSG_KEY, WEIXIN_APP_ID);
         $errcode = $pc->decryptJsonMsg($msg_sign, $timeStamp, $nonce, $postStr_key, $postStr);
-        #error_log('#error_log:' . json_encode($errcode));
         if ($errcode == 0) {
             #error_log("解密后: " . $postStr . "\n");
             if (!empty( $postStr ) && is_string( $postStr )){