From 21714530042f290cfd71231a60ffaab38b74f446 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Tue, 8 Sep 2020 15:40:31 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 System/Snowflake.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/System/Snowflake.php b/System/Snowflake.php
index 39398b7d..655544c8 100644
--- a/System/Snowflake.php
+++ b/System/Snowflake.php
@@ -201,7 +201,7 @@ class Snowflake
 	public static function async(string $class, array $params = [])
 	{
 		$server = static::app()->server->getServer();
-		if (!isset($server->setting['task_worker_num'])) {
+		if (!isset($server->setting['task_worker_num']) || !class_exists($class)) {
 			return;
 		}
 		$randWorkerId = random_int(0, $server->setting['task_worker_num']);