调优

@@ -65,7 +65,7 @@ class ProxyService
                 // 处理数据
                 $result = $this->clients[$fd]->exec($data);
                 // 解锁
-                $this->clients[$fd]->unlock();
+                if(isset($this->clients[$fd])) $this->clients[$fd]->unlock();
                 // 返回结果
                 $server->send($fd, $this->push($result[1]));
                 // 是否关闭连接