diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index df0cfde..5023c0e 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -341,6 +341,7 @@ class HttpClient
 	 */
 	private function coroutine($ip, $url, $data = [])
 	{
+		echo $ip . ':' . $url . PHP_EOL;
 		$client = $this->generate_client($ip, $url, $data);
 		if ($client->statusCode < 0) {
 			throw new \Exception($client->errMsg);