* * @return string */ protected function getMethod() { return 'alipay.trade.precreate'; } /** * get productCode config. * * @author yansongda * * @return string */ protected function getProductCode() { return ''; } /** * pay a order. * * @author yansongda * * @param array $config_biz * * @return array|bool */ public function pay(array $config_biz = []) { return $this->getResult($config_biz, $this->getMethod()); } }